21718398

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{727}}^1$

素因数の和:1128

約数の個数: 32

約数和(自身を含む): 46964736

約数和(自身を除く): 25246338

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 383, 727, 766, 1149, 1454, 2181, 2298, 4362, 4979, 9451, 9958, 14937, 18902, 28353, 29874, 56706, 278441, 556882, 835323, 1670646, 3619733, 7239466, 10859199, 21718398]

約数ペア:

[(1, 21718398), (2, 10859199), (3, 7239466), (6, 3619733), (13, 1670646), (26, 835323), (39, 556882), (78, 278441), (383, 56706), (727, 29874), (766, 28353), (1149, 18902), (1454, 14937), (2181, 9958), (2298, 9451), (4362, 4979)]