21754980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1033}}^1$

素因数の和:1067

約数の個数: 120

約数和(自身を含む): 73567032

約数和(自身を除く): 51812052

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 260, 270, 324, 351, 390, 405, 468, 540, 585, 702, 780, 810, 1033, 1053, 1170, 1404, 1620, 1755, 2066, 2106, 2340, 3099, 3510, 4132, 4212, 5165, 5265, 6198, 7020, 9297, 10330, 10530, 12396, 13429, 15495, 18594, 20660, 21060, 26858, 27891, 30990, 37188, 40287, 46485, 53716, 55782, 61980, 67145, 80574, 83673, 92970, 111564, 120861, 134290, 139455, 161148, 167346, 185940, 201435, 241722, 268580, 278910, 334692, 362583, 402870, 418365, 483444, 557820, 604305, 725166, 805740, 836730, 1087749, 1208610, 1450332, 1673460, 1812915, 2175498, 2417220, 3625830, 4350996, 5438745, 7251660, 10877490, 21754980]

約数ペア:

[(1, 21754980), (2, 10877490), (3, 7251660), (4, 5438745), (5, 4350996), (6, 3625830), (9, 2417220), (10, 2175498), (12, 1812915), (13, 1673460), (15, 1450332), (18, 1208610), (20, 1087749), (26, 836730), (27, 805740), (30, 725166), (36, 604305), (39, 557820), (45, 483444), (52, 418365), (54, 402870), (60, 362583), (65, 334692), (78, 278910), (81, 268580), (90, 241722), (108, 201435), (117, 185940), (130, 167346), (135, 161148), (156, 139455), (162, 134290), (180, 120861), (195, 111564), (234, 92970), (260, 83673), (270, 80574), (324, 67145), (351, 61980), (390, 55782), (405, 53716), (468, 46485), (540, 40287), (585, 37188), (702, 30990), (780, 27891), (810, 26858), (1033, 21060), (1053, 20660), (1170, 18594), (1404, 15495), (1620, 13429), (1755, 12396), (2066, 10530), (2106, 10330), (2340, 9297), (3099, 7020), (3510, 6198), (4132, 5265), (4212, 5165)]