391963.0000000

素因数分解:

$3^1\times 7^3\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:234

約数の個数: 32

約数和(自身を含む): 12595200

約数和(自身を除く): 4712031

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 163, 329, 343, 489, 987, 1029, 1141, 2303, 3423, 6909, 7661, 7987, 16121, 22983, 23961, 48363, 53627, 55909, 160881, 167727, 375389, 1126167, 2627723, 7883169]

約数ペア:

[(1, 7883169), (3, 2627723), (7, 1126167), (21, 375389), (47, 167727), (49, 160881), (141, 55909), (147, 53627), (163, 48363), (329, 23961), (343, 22983), (489, 16121), (987, 7987), (1029, 7661), (1141, 6909), (2303, 3423)]