20894985

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{8761}}^1$

素因数の和:8825

約数の個数: 24

約数和(自身を含む): 36905544

約数和(自身を除く): 16010559

約数列:

[1, 3, 5, 9, 15, 45, 53, 159, 265, 477, 795, 2385, 8761, 26283, 43805, 78849, 131415, 394245, 464333, 1392999, 2321665, 4178997, 6964995, 20894985]

約数ペア:

[(1, 20894985), (3, 6964995), (5, 4178997), (9, 2321665), (15, 1392999), (45, 464333), (53, 394245), (159, 131415), (265, 78849), (477, 43805), (795, 26283), (2385, 8761)]