21719930

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{383}}^1$

素因数の和:550

約数の個数: 32

約数和(自身を含む): 40310784

約数和(自身を除く): 18590854

約数列:

[1, 2, 5, 10, 53, 106, 107, 214, 265, 383, 530, 535, 766, 1070, 1915, 3830, 5671, 11342, 20299, 28355, 40598, 40981, 56710, 81962, 101495, 202990, 204905, 409810, 2171993, 4343986, 10859965, 21719930]

約数ペア:

[(1, 21719930), (2, 10859965), (5, 4343986), (10, 2171993), (53, 409810), (106, 204905), (107, 202990), (214, 101495), (265, 81962), (383, 56710), (530, 40981), (535, 40598), (766, 28355), (1070, 20299), (1915, 11342), (3830, 5671)]