21355864

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{62081}}^1$

素因数の和:62130

約数の個数: 16

約数和(自身を含む): 40974120

約数和(自身を除く): 19618256

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 62081, 124162, 248324, 496648, 2669483, 5338966, 10677932, 21355864]

約数ペア:

[(1, 21355864), (2, 10677932), (4, 5338966), (8, 2669483), (43, 496648), (86, 248324), (172, 124162), (344, 62081)]