138911997

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{617}}^1$

素因数の和:849

約数の個数: 32

約数和(自身を含む): 216428544

約数和(自身を除く): 77516547

約数列:

[1, 3, 7, 21, 71, 151, 213, 453, 497, 617, 1057, 1491, 1851, 3171, 4319, 10721, 12957, 32163, 43807, 75047, 93167, 131421, 225141, 279501, 306649, 652169, 919947, 1956507, 6614857, 19844571, 46303999, 138911997]

約数ペア:

[(1, 138911997), (3, 46303999), (7, 19844571), (21, 6614857), (71, 1956507), (151, 919947), (213, 652169), (453, 306649), (497, 279501), (617, 225141), (1057, 131421), (1491, 93167), (1851, 75047), (3171, 43807), (4319, 32163), (10721, 12957)]