21720116

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{25981}}^1$

素因数の和:26015

約数の個数: 24

約数和(自身を含む): 43649760

約数和(自身を除く): 21929644

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 25981, 51962, 103924, 285791, 493639, 571582, 987278, 1143164, 1974556, 5430029, 10860058, 21720116]

約数ペア:

[(1, 21720116), (2, 10860058), (4, 5430029), (11, 1974556), (19, 1143164), (22, 987278), (38, 571582), (44, 493639), (76, 285791), (209, 103924), (418, 51962), (836, 25981)]