20181991101

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{1609}}^1\times {\mathrm{134873}}^1$

素因数の和:136516

約数の個数: 16

約数和(自身を含む): 27794833920

約数和(自身を除く): 7612842819

約数列:

[1, 3, 31, 93, 1609, 4827, 49879, 134873, 149637, 404619, 4181063, 12543189, 217010657, 651031971, 6727330367, 20181991101]

約数ペア:

[(1, 20181991101), (3, 6727330367), (31, 651031971), (93, 217010657), (1609, 12543189), (4827, 4181063), (49879, 404619), (134873, 149637)]