20151818

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{23057}}^1$

素因数の和:23101

約数の個数: 16

約数和(自身を含む): 33203520

約数和(自身を除く): 13051702

約数列:

[1, 2, 19, 23, 38, 46, 437, 874, 23057, 46114, 438083, 530311, 876166, 1060622, 10075909, 20151818]

約数ペア:

[(1, 20151818), (2, 10075909), (19, 1060622), (23, 876166), (38, 530311), (46, 438083), (437, 46114), (874, 23057)]