21391536

素因数分解:

$2^4\times 3^1\times {\mathrm{445657}}^1$

素因数の和:445668

約数の個数: 20

約数和(自身を含む): 55261592

約数和(自身を除く): 33870056

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 445657, 891314, 1336971, 1782628, 2673942, 3565256, 5347884, 7130512, 10695768, 21391536]

約数ペア:

[(1, 21391536), (2, 10695768), (3, 7130512), (4, 5347884), (6, 3565256), (8, 2673942), (12, 1782628), (16, 1336971), (24, 891314), (48, 445657)]