21855263

素因数分解:

${\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:362

約数の個数: 16

約数和(自身を含む): 23733600

約数和(自身を除く): 1878337

約数列:

[1, 19, 61, 109, 173, 1159, 2071, 3287, 6649, 10553, 18857, 126331, 200507, 358283, 1150277, 21855263]

約数ペア:

[(1, 21855263), (19, 1150277), (61, 358283), (109, 200507), (173, 126331), (1159, 18857), (2071, 10553), (3287, 6649)]