21607005

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{389}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 41408640

約数和(自身を除く): 19801635

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 389, 483, 529, 805, 1167, 1587, 1945, 2415, 2645, 2723, 3703, 5835, 7935, 8169, 8947, 11109, 13615, 18515, 26841, 40845, 44735, 55545, 62629, 134205, 187887, 205781, 313145, 617343, 939435, 1028905, 1440467, 3086715, 4321401, 7202335, 21607005]

約数ペア:

[(1, 21607005), (3, 7202335), (5, 4321401), (7, 3086715), (15, 1440467), (21, 1028905), (23, 939435), (35, 617343), (69, 313145), (105, 205781), (115, 187887), (161, 134205), (345, 62629), (389, 55545), (483, 44735), (529, 40845), (805, 26841), (1167, 18515), (1587, 13615), (1945, 11109), (2415, 8947), (2645, 8169), (2723, 7935), (3703, 5835)]