21782840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23677}}^1$

素因数の和:23711

約数の個数: 32

約数和(自身を含む): 51144480

約数和(自身を除く): 29361640

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23677, 47354, 94708, 118385, 189416, 236770, 473540, 544571, 947080, 1089142, 2178284, 2722855, 4356568, 5445710, 10891420, 21782840]

約数ペア:

[(1, 21782840), (2, 10891420), (4, 5445710), (5, 4356568), (8, 2722855), (10, 2178284), (20, 1089142), (23, 947080), (40, 544571), (46, 473540), (92, 236770), (115, 189416), (184, 118385), (230, 94708), (460, 47354), (920, 23677)]