21988995

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29917}}^1$

素因数の和:29939

約数の個数: 24

約数和(自身を含む): 40927824

約数和(自身を除く): 18938829

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 29917, 89751, 149585, 209419, 448755, 628257, 1047095, 1465933, 3141285, 4397799, 7329665, 21988995]

約数ペア:

[(1, 21988995), (3, 7329665), (5, 4397799), (7, 3141285), (15, 1465933), (21, 1047095), (35, 628257), (49, 448755), (105, 209419), (147, 149585), (245, 89751), (735, 29917)]