21347792

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70223}}^1$

素因数の和:70250

約数の個数: 20

約数和(自身を含む): 43538880

約数和(自身を除く): 22191088

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70223, 140446, 280892, 561784, 1123568, 1334237, 2668474, 5336948, 10673896, 21347792]

約数ペア:

[(1, 21347792), (2, 10673896), (4, 5336948), (8, 2668474), (16, 1334237), (19, 1123568), (38, 561784), (76, 280892), (152, 140446), (304, 70223)]