21993570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7883}}^1$

素因数の和:7927

約数の個数: 48

約数和(自身を含む): 59035392

約数和(自身を除く): 37041822

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7883, 15766, 23649, 39415, 47298, 70947, 78830, 118245, 141894, 236490, 244373, 354735, 488746, 709470, 733119, 1221865, 1466238, 2199357, 2443730, 3665595, 4398714, 7331190, 10996785, 21993570]

約数ペア:

[(1, 21993570), (2, 10996785), (3, 7331190), (5, 4398714), (6, 3665595), (9, 2443730), (10, 2199357), (15, 1466238), (18, 1221865), (30, 733119), (31, 709470), (45, 488746), (62, 354735), (90, 244373), (93, 236490), (155, 141894), (186, 118245), (279, 78830), (310, 70947), (465, 47298), (558, 39415), (930, 23649), (1395, 15766), (2790, 7883)]