21329679

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59747}}^1$

素因数の和:59774

約数の個数: 16

約数和(自身を含む): 34414848

約数和(自身を除く): 13085169

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 59747, 179241, 418229, 1015699, 1254687, 3047097, 7109893, 21329679]

約数ペア:

[(1, 21329679), (3, 7109893), (7, 3047097), (17, 1254687), (21, 1015699), (51, 418229), (119, 179241), (357, 59747)]