21951540

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:143

約数の個数: 192

約数和(自身を含む): 76204800

約数和(自身を除く): 54253260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 53, 54, 59, 60, 65, 78, 90, 106, 108, 117, 118, 130, 135, 156, 159, 177, 180, 195, 212, 234, 236, 260, 265, 270, 295, 318, 351, 354, 390, 468, 477, 530, 531, 540, 585, 590, 636, 689, 702, 708, 767, 780, 795, 885, 954, 1060, 1062, 1170, 1180, 1378, 1404, 1431, 1534, 1590, 1593, 1755, 1770, 1908, 2067, 2124, 2301, 2340, 2385, 2655, 2756, 2862, 3068, 3127, 3180, 3186, 3445, 3510, 3540, 3835, 4134, 4602, 4770, 5310, 5724, 6201, 6254, 6372, 6890, 6903, 7020, 7155, 7670, 7965, 8268, 9204, 9381, 9540, 10335, 10620, 11505, 12402, 12508, 13780, 13806, 14310, 15340, 15635, 15930, 18603, 18762, 20670, 20709, 23010, 24804, 27612, 28143, 28620, 31005, 31270, 31860, 34515, 37206, 37524, 40651, 41340, 41418, 46020, 46905, 56286, 62010, 62540, 69030, 74412, 81302, 82836, 84429, 93015, 93810, 103545, 112572, 121953, 124020, 138060, 140715, 162604, 168858, 186030, 187620, 203255, 207090, 243906, 281430, 337716, 365859, 372060, 406510, 414180, 422145, 487812, 562860, 609765, 731718, 813020, 844290, 1097577, 1219530, 1463436, 1688580, 1829295, 2195154, 2439060, 3658590, 4390308, 5487885, 7317180, 10975770, 21951540]

約数ペア:

[(1, 21951540), (2, 10975770), (3, 7317180), (4, 5487885), (5, 4390308), (6, 3658590), (9, 2439060), (10, 2195154), (12, 1829295), (13, 1688580), (15, 1463436), (18, 1219530), (20, 1097577), (26, 844290), (27, 813020), (30, 731718), (36, 609765), (39, 562860), (45, 487812), (52, 422145), (53, 414180), (54, 406510), (59, 372060), (60, 365859), (65, 337716), (78, 281430), (90, 243906), (106, 207090), (108, 203255), (117, 187620), (118, 186030), (130, 168858), (135, 162604), (156, 140715), (159, 138060), (177, 124020), (180, 121953), (195, 112572), (212, 103545), (234, 93810), (236, 93015), (260, 84429), (265, 82836), (270, 81302), (295, 74412), (318, 69030), (351, 62540), (354, 62010), (390, 56286), (468, 46905), (477, 46020), (530, 41418), (531, 41340), (540, 40651), (585, 37524), (590, 37206), (636, 34515), (689, 31860), (702, 31270), (708, 31005), (767, 28620), (780, 28143), (795, 27612), (885, 24804), (954, 23010), (1060, 20709), (1062, 20670), (1170, 18762), (1180, 18603), (1378, 15930), (1404, 15635), (1431, 15340), (1534, 14310), (1590, 13806), (1593, 13780), (1755, 12508), (1770, 12402), (1908, 11505), (2067, 10620), (2124, 10335), (2301, 9540), (2340, 9381), (2385, 9204), (2655, 8268), (2756, 7965), (2862, 7670), (3068, 7155), (3127, 7020), (3180, 6903), (3186, 6890), (3445, 6372), (3510, 6254), (3540, 6201), (3835, 5724), (4134, 5310), (4602, 4770)]