201618781

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{2801}}^1$

素因数の和:2941

約数の個数: 24

約数和(自身を含む): 254903544

約数和(自身を除く): 53284763

約数列:

[1, 7, 13, 49, 91, 113, 637, 791, 1469, 2801, 5537, 10283, 19607, 36413, 71981, 137249, 254891, 316513, 1784237, 2215591, 4114669, 15509137, 28802683, 201618781]

約数ペア:

[(1, 201618781), (7, 28802683), (13, 15509137), (49, 4114669), (91, 2215591), (113, 1784237), (637, 316513), (791, 254891), (1469, 137249), (2801, 71981), (5537, 36413), (10283, 19607)]