21359248

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43063}}^1$

素因数の和:43102

約数の個数: 20

約数和(自身を含む): 42719488

約数和(自身を除く): 21360240

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 43063, 86126, 172252, 344504, 689008, 1334953, 2669906, 5339812, 10679624, 21359248]

約数ペア:

[(1, 21359248), (2, 10679624), (4, 5339812), (8, 2669906), (16, 1334953), (31, 689008), (62, 344504), (124, 172252), (248, 86126), (496, 43063)]