31291617

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{677}}^1$

素因数の和:789

約数の個数: 32

約数和(自身を含む): 49987584

約数和(自身を除く): 18695967

約数列:

[1, 3, 7, 21, 31, 71, 93, 213, 217, 497, 651, 677, 1491, 2031, 2201, 4739, 6603, 14217, 15407, 20987, 46221, 48067, 62961, 144201, 146909, 336469, 440727, 1009407, 1490077, 4470231, 10430539, 31291617]

約数ペア:

[(1, 31291617), (3, 10430539), (7, 4470231), (21, 1490077), (31, 1009407), (71, 440727), (93, 336469), (213, 146909), (217, 144201), (497, 62961), (651, 48067), (677, 46221), (1491, 20987), (2031, 15407), (2201, 14217), (4739, 6603)]