21648786

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{212243}}^1$

素因数の和:212265

約数の個数: 16

約数和(自身を含む): 45844704

約数和(自身を除く): 24195918

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 212243, 424486, 636729, 1273458, 3608131, 7216262, 10824393, 21648786]

約数ペア:

[(1, 21648786), (2, 10824393), (3, 7216262), (6, 3608131), (17, 1273458), (34, 636729), (51, 424486), (102, 212243)]