21354570

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{569}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 57456000

約数和(自身を除く): 36101430

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 139, 270, 278, 417, 569, 695, 834, 1138, 1251, 1390, 1707, 2085, 2502, 2845, 3414, 3753, 4170, 5121, 5690, 6255, 7506, 8535, 10242, 12510, 15363, 17070, 18765, 25605, 30726, 37530, 51210, 76815, 79091, 153630, 158182, 237273, 395455, 474546, 711819, 790910, 1186365, 1423638, 2135457, 2372730, 3559095, 4270914, 7118190, 10677285, 21354570]

約数ペア:

[(1, 21354570), (2, 10677285), (3, 7118190), (5, 4270914), (6, 3559095), (9, 2372730), (10, 2135457), (15, 1423638), (18, 1186365), (27, 790910), (30, 711819), (45, 474546), (54, 395455), (90, 237273), (135, 158182), (139, 153630), (270, 79091), (278, 76815), (417, 51210), (569, 37530), (695, 30726), (834, 25605), (1138, 18765), (1251, 17070), (1390, 15363), (1707, 12510), (2085, 10242), (2502, 8535), (2845, 7506), (3414, 6255), (3753, 5690), (4170, 5121)]