21819310

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{75239}}^1$

素因数の和:75275

約数の個数: 16

約数和(自身を含む): 40629600

約数和(自身を除く): 18810290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 75239, 150478, 376195, 752390, 2181931, 4363862, 10909655, 21819310]

約数ペア:

[(1, 21819310), (2, 10909655), (5, 4363862), (10, 2181931), (29, 752390), (58, 376195), (145, 150478), (290, 75239)]