201531993

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{20921}}^1$

素因数の和:20969

約数の個数: 24

約数和(自身を含む): 306298080

約数和(自身を除く): 104766087

約数列:

[1, 3, 13, 19, 39, 57, 169, 247, 507, 741, 3211, 9633, 20921, 62763, 271973, 397499, 815919, 1192497, 3535649, 5167487, 10606947, 15502461, 67177331, 201531993]

約数ペア:

[(1, 201531993), (3, 67177331), (13, 15502461), (19, 10606947), (39, 5167487), (57, 3535649), (169, 1192497), (247, 815919), (507, 397499), (741, 271973), (3211, 62763), (9633, 20921)]