21494973

素因数分解:

$3^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:668

約数の個数: 16

約数和(自身を含む): 29165760

約数和(自身を除く): 7670787

約数列:

[1, 3, 113, 163, 339, 389, 489, 1167, 18419, 43957, 55257, 63407, 131871, 190221, 7164991, 21494973]

約数ペア:

[(1, 21494973), (3, 7164991), (113, 190221), (163, 131871), (339, 63407), (389, 55257), (489, 43957), (1167, 18419)]