20404142

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{22621}}^1$

素因数の和:22675

約数の個数: 16

約数和(自身を含む): 34204464

約数和(自身を除く): 13800322

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 22621, 45242, 248831, 497662, 927461, 1854922, 10202071, 20404142]

約数ペア:

[(1, 20404142), (2, 10202071), (11, 1854922), (22, 927461), (41, 497662), (82, 248831), (451, 45242), (902, 22621)]