21613020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1$

素因数の和:276

約数の個数: 144

約数和(自身を含む): 71947680

約数和(自身を除く): 50334660

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 13, 15, 20, 22, 26, 30, 33, 39, 44, 52, 55, 60, 65, 66, 78, 110, 121, 130, 132, 143, 156, 165, 195, 220, 229, 242, 260, 286, 330, 363, 390, 429, 458, 484, 572, 605, 660, 687, 715, 726, 780, 858, 916, 1145, 1210, 1374, 1430, 1452, 1573, 1716, 1815, 2145, 2290, 2420, 2519, 2748, 2860, 2977, 3146, 3435, 3630, 4290, 4580, 4719, 5038, 5954, 6292, 6870, 7260, 7557, 7865, 8580, 8931, 9438, 10076, 11908, 12595, 13740, 14885, 15114, 15730, 17862, 18876, 23595, 25190, 27709, 29770, 30228, 31460, 32747, 35724, 37785, 44655, 47190, 50380, 55418, 59540, 65494, 75570, 83127, 89310, 94380, 98241, 110836, 130988, 138545, 151140, 163735, 166254, 178620, 196482, 277090, 327470, 332508, 360217, 392964, 415635, 491205, 554180, 654940, 720434, 831270, 982410, 1080651, 1440868, 1662540, 1801085, 1964820, 2161302, 3602170, 4322604, 5403255, 7204340, 10806510, 21613020]

約数ペア:

[(1, 21613020), (2, 10806510), (3, 7204340), (4, 5403255), (5, 4322604), (6, 3602170), (10, 2161302), (11, 1964820), (12, 1801085), (13, 1662540), (15, 1440868), (20, 1080651), (22, 982410), (26, 831270), (30, 720434), (33, 654940), (39, 554180), (44, 491205), (52, 415635), (55, 392964), (60, 360217), (65, 332508), (66, 327470), (78, 277090), (110, 196482), (121, 178620), (130, 166254), (132, 163735), (143, 151140), (156, 138545), (165, 130988), (195, 110836), (220, 98241), (229, 94380), (242, 89310), (260, 83127), (286, 75570), (330, 65494), (363, 59540), (390, 55418), (429, 50380), (458, 47190), (484, 44655), (572, 37785), (605, 35724), (660, 32747), (687, 31460), (715, 30228), (726, 29770), (780, 27709), (858, 25190), (916, 23595), (1145, 18876), (1210, 17862), (1374, 15730), (1430, 15114), (1452, 14885), (1573, 13740), (1716, 12595), (1815, 11908), (2145, 10076), (2290, 9438), (2420, 8931), (2519, 8580), (2748, 7865), (2860, 7557), (2977, 7260), (3146, 6870), (3435, 6292), (3630, 5954), (4290, 5038), (4580, 4719)]