21406387

素因数分解:

${\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:318

約数の個数: 16

約数和(自身を含む): 22905792

約数和(自身を除く): 1499405

約数列:

[1, 37, 41, 103, 137, 1517, 3811, 4223, 5069, 5617, 14111, 156251, 207829, 522107, 578551, 21406387]

約数ペア:

[(1, 21406387), (37, 578551), (41, 522107), (103, 207829), (137, 156251), (1517, 14111), (3811, 5617), (4223, 5069)]