168305571

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 284663808

約数和(自身を除く): 116358237

約数列:

[1, 3, 7, 9, 21, 63, 71, 191, 197, 213, 497, 573, 591, 639, 1337, 1379, 1491, 1719, 1773, 4011, 4137, 4473, 12033, 12411, 13561, 13987, 37627, 40683, 41961, 94927, 97909, 112881, 122049, 125883, 263389, 284781, 293727, 338643, 790167, 854343, 881181, 2370501, 2671517, 8014551, 18700619, 24043653, 56101857, 168305571]

約数ペア:

[(1, 168305571), (3, 56101857), (7, 24043653), (9, 18700619), (21, 8014551), (63, 2671517), (71, 2370501), (191, 881181), (197, 854343), (213, 790167), (497, 338643), (573, 293727), (591, 284781), (639, 263389), (1337, 125883), (1379, 122049), (1491, 112881), (1719, 97909), (1773, 94927), (4011, 41961), (4137, 40683), (4473, 37627), (12033, 13987), (12411, 13561)]