21699153

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2281}}^1$

素因数の和:2445

約数の個数: 24

約数和(自身を含む): 36073856

約数和(自身を除く): 14374703

約数列:

[1, 3, 7, 9, 21, 63, 151, 453, 1057, 1359, 2281, 3171, 6843, 9513, 15967, 20529, 47901, 143703, 344431, 1033293, 2411017, 3099879, 7233051, 21699153]

約数ペア:

[(1, 21699153), (3, 7233051), (7, 3099879), (9, 2411017), (21, 1033293), (63, 344431), (151, 143703), (453, 47901), (1057, 20529), (1359, 15967), (2281, 9513), (3171, 6843)]