21426490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{112771}}^1$

素因数の和:112797

約数の個数: 16

約数和(自身を含む): 40597920

約数和(自身を除く): 19171430

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 112771, 225542, 563855, 1127710, 2142649, 4285298, 10713245, 21426490]

約数ペア:

[(1, 21426490), (2, 10713245), (5, 4285298), (10, 2142649), (19, 1127710), (38, 563855), (95, 225542), (190, 112771)]