21512521

素因数分解:

${\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:356

約数の個数: 16

約数和(自身を含む): 23224320

約数和(自身を除く): 1711799

約数列:

[1, 23, 59, 83, 191, 1357, 1909, 4393, 4897, 11269, 15853, 112631, 259187, 364619, 935327, 21512521]

約数ペア:

[(1, 21512521), (23, 935327), (59, 364619), (83, 259187), (191, 112631), (1357, 15853), (1909, 11269), (4393, 4897)]