21472353

素因数分解:

$3^2\times 7^1\times {\mathrm{569}}^1\times {\mathrm{599}}^1$

素因数の和:1181

約数の個数: 24

約数和(自身を含む): 35568000

約数和(自身を除く): 14095647

約数列:

[1, 3, 7, 9, 21, 63, 569, 599, 1707, 1797, 3983, 4193, 5121, 5391, 11949, 12579, 35847, 37737, 340831, 1022493, 2385817, 3067479, 7157451, 21472353]

約数ペア:

[(1, 21472353), (3, 7157451), (7, 3067479), (9, 2385817), (21, 1022493), (63, 340831), (569, 37737), (599, 35847), (1707, 12579), (1797, 11949), (3983, 5391), (4193, 5121)]