21535965

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 41146560

約数和(自身を除く): 19610595

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 139, 165, 313, 417, 495, 695, 939, 1251, 1529, 1565, 2085, 2817, 3443, 4587, 4695, 6255, 7645, 10329, 13761, 14085, 17215, 22935, 30987, 43507, 51645, 68805, 130521, 154935, 217535, 391563, 478577, 652605, 1435731, 1957815, 2392885, 4307193, 7178655, 21535965]

約数ペア:

[(1, 21535965), (3, 7178655), (5, 4307193), (9, 2392885), (11, 1957815), (15, 1435731), (33, 652605), (45, 478577), (55, 391563), (99, 217535), (139, 154935), (165, 130521), (313, 68805), (417, 51645), (495, 43507), (695, 30987), (939, 22935), (1251, 17215), (1529, 14085), (1565, 13761), (2085, 10329), (2817, 7645), (3443, 6255), (4587, 4695)]