621665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:232

約数の個数: 16

約数和(自身を含む): 829440

約数和(自身を除く): 207775

約数列:

[1, 5, 11, 55, 89, 127, 445, 635, 979, 1397, 4895, 6985, 11303, 56515, 124333, 621665]

約数ペア:

[(1, 621665), (5, 124333), (11, 56515), (55, 11303), (89, 6985), (127, 4895), (445, 1397), (635, 979)]