31781619

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{4073}}^1$

素因数の和:4116

約数の個数: 24

約数和(自身を含む): 50028720

約数和(自身を除く): 18247101

約数列:

[1, 3, 9, 17, 27, 51, 153, 289, 459, 867, 2601, 4073, 7803, 12219, 36657, 69241, 109971, 207723, 623169, 1177097, 1869507, 3531291, 10593873, 31781619]

約数ペア:

[(1, 31781619), (3, 10593873), (9, 3531291), (17, 1869507), (27, 1177097), (51, 623169), (153, 207723), (289, 109971), (459, 69241), (867, 36657), (2601, 12219), (4073, 7803)]