21354928

素因数分解:

$2^4\times 7^1\times {\mathrm{190669}}^1$

素因数の和:190684

約数の個数: 20

約数和(自身を含む): 47286160

約数和(自身を除く): 25931232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 190669, 381338, 762676, 1334683, 1525352, 2669366, 3050704, 5338732, 10677464, 21354928]

約数ペア:

[(1, 21354928), (2, 10677464), (4, 5338732), (7, 3050704), (8, 2669366), (14, 1525352), (16, 1334683), (28, 762676), (56, 381338), (112, 190669)]