21696935

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{631}}^1$

素因数の和:695

約数の個数: 24

約数和(自身を含む): 29357664

約数和(自身を除く): 7660729

約数列:

[1, 5, 13, 23, 65, 115, 299, 529, 631, 1495, 2645, 3155, 6877, 8203, 14513, 34385, 41015, 72565, 188669, 333799, 943345, 1668995, 4339387, 21696935]

約数ペア:

[(1, 21696935), (5, 4339387), (13, 1668995), (23, 943345), (65, 333799), (115, 188669), (299, 72565), (529, 41015), (631, 34385), (1495, 14513), (2645, 8203), (3155, 6877)]