21694840

素因数分解:

$2^3\times 5^1\times {\mathrm{542371}}^1$

素因数の和:542382

約数の個数: 16

約数和(自身を含む): 48813480

約数和(自身を除く): 27118640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 542371, 1084742, 2169484, 2711855, 4338968, 5423710, 10847420, 21694840]

約数ペア:

[(1, 21694840), (2, 10847420), (4, 5423710), (5, 4338968), (8, 2711855), (10, 2169484), (20, 1084742), (40, 542371)]