138129873

素因数分解:

$3^1\times 7^3\times {\mathrm{241}}^1\times {\mathrm{557}}^1$

素因数の和:822

約数の個数: 32

約数和(自身を含む): 216057600

約数和(自身を除く): 77927727

約数列:

[1, 3, 7, 21, 49, 147, 241, 343, 557, 723, 1029, 1671, 1687, 3899, 5061, 11697, 11809, 27293, 35427, 81879, 82663, 134237, 191051, 247989, 402711, 573153, 939659, 2818977, 6577613, 19732839, 46043291, 138129873]

約数ペア:

[(1, 138129873), (3, 46043291), (7, 19732839), (21, 6577613), (49, 2818977), (147, 939659), (241, 573153), (343, 402711), (557, 247989), (723, 191051), (1029, 134237), (1671, 82663), (1687, 81879), (3899, 35427), (5061, 27293), (11697, 11809)]