21416900

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{2711}}^1$

素因数の和:2804

約数の個数: 36

約数和(自身を含む): 47080320

約数和(自身を除く): 25663420

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1580, 1975, 2711, 3950, 5422, 7900, 10844, 13555, 27110, 54220, 67775, 135550, 214169, 271100, 428338, 856676, 1070845, 2141690, 4283380, 5354225, 10708450, 21416900]

約数ペア:

[(1, 21416900), (2, 10708450), (4, 5354225), (5, 4283380), (10, 2141690), (20, 1070845), (25, 856676), (50, 428338), (79, 271100), (100, 214169), (158, 135550), (316, 67775), (395, 54220), (790, 27110), (1580, 13555), (1975, 10844), (2711, 7900), (3950, 5422)]