21432788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{1181}}^1$

素因数の和:1547

約数の個数: 24

約数和(自身を含む): 40542600

約数和(自身を除く): 19109812

約数列:

[1, 2, 4, 13, 26, 52, 349, 698, 1181, 1396, 2362, 4537, 4724, 9074, 15353, 18148, 30706, 61412, 412169, 824338, 1648676, 5358197, 10716394, 21432788]

約数ペア:

[(1, 21432788), (2, 10716394), (4, 5358197), (13, 1648676), (26, 824338), (52, 412169), (349, 61412), (698, 30706), (1181, 18148), (1396, 15353), (2362, 9074), (4537, 4724)]