21990462

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1097}}^1$

素因数の和:1372

約数の個数: 32

約数和(自身を含む): 47591712

約数和(自身を除く): 25601250

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 257, 514, 771, 1097, 1542, 2194, 3291, 3341, 6582, 6682, 10023, 14261, 20046, 28522, 42783, 85566, 281929, 563858, 845787, 1691574, 3665077, 7330154, 10995231, 21990462]

約数ペア:

[(1, 21990462), (2, 10995231), (3, 7330154), (6, 3665077), (13, 1691574), (26, 845787), (39, 563858), (78, 281929), (257, 85566), (514, 42783), (771, 28522), (1097, 20046), (1542, 14261), (2194, 10023), (3291, 6682), (3341, 6582)]