78921507

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{11423}}^1$

素因数の和:11487

約数の個数: 24

約数和(自身を含む): 125024256

約数和(自身を除く): 46102749

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 6909, 11423, 34269, 79961, 239883, 536881, 559727, 1610643, 1679181, 3758167, 11274501, 26307169, 78921507]

約数ペア:

[(1, 78921507), (3, 26307169), (7, 11274501), (21, 3758167), (47, 1679181), (49, 1610643), (141, 559727), (147, 536881), (329, 239883), (987, 79961), (2303, 34269), (6909, 11423)]