287791857

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{229}}^1\times {\mathrm{2971}}^1$

素因数の和:3253

約数の個数: 24

約数和(自身を含む): 426541440

約数和(自身を除く): 138749583

約数列:

[1, 3, 9, 47, 141, 229, 423, 687, 2061, 2971, 8913, 10763, 26739, 32289, 96867, 139637, 418911, 680359, 1256733, 2041077, 6123231, 31976873, 95930619, 287791857]

約数ペア:

[(1, 287791857), (3, 95930619), (9, 31976873), (47, 6123231), (141, 2041077), (229, 1256733), (423, 680359), (687, 418911), (2061, 139637), (2971, 96867), (8913, 32289), (10763, 26739)]