21724840

素因数分解:

$2^3\times 5^1\times {\mathrm{467}}^1\times {\mathrm{1163}}^1$

素因数の和:1641

約数の個数: 32

約数和(自身を含む): 49027680

約数和(自身を除く): 27302840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 467, 934, 1163, 1868, 2326, 2335, 3736, 4652, 4670, 5815, 9304, 9340, 11630, 18680, 23260, 46520, 543121, 1086242, 2172484, 2715605, 4344968, 5431210, 10862420, 21724840]

約数ペア:

[(1, 21724840), (2, 10862420), (4, 5431210), (5, 4344968), (8, 2715605), (10, 2172484), (20, 1086242), (40, 543121), (467, 46520), (934, 23260), (1163, 18680), (1868, 11630), (2326, 9340), (2335, 9304), (3736, 5815), (4652, 4670)]