261617181

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{3631}}^1$

素因数の和:3761

約数の個数: 32

約数和(自身を含む): 412827648

約数和(自身を除く): 151210467

約数列:

[1, 3, 7, 21, 47, 73, 141, 219, 329, 511, 987, 1533, 3431, 3631, 10293, 10893, 24017, 25417, 72051, 76251, 170657, 265063, 511971, 795189, 1194599, 1855441, 3583797, 5566323, 12457961, 37373883, 87205727, 261617181]

約数ペア:

[(1, 261617181), (3, 87205727), (7, 37373883), (21, 12457961), (47, 5566323), (73, 3583797), (141, 1855441), (219, 1194599), (329, 795189), (511, 511971), (987, 265063), (1533, 170657), (3431, 76251), (3631, 72051), (10293, 25417), (10893, 24017)]