31709985

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{859}}^1$

素因数の和:997

約数の個数: 32

約数和(自身を含む): 53498880

約数和(自身を除く): 21788895

約数列:

[1, 3, 5, 15, 23, 69, 107, 115, 321, 345, 535, 859, 1605, 2461, 2577, 4295, 7383, 12305, 12885, 19757, 36915, 59271, 91913, 98785, 275739, 296355, 459565, 1378695, 2113999, 6341997, 10569995, 31709985]

約数ペア:

[(1, 31709985), (3, 10569995), (5, 6341997), (15, 2113999), (23, 1378695), (69, 459565), (107, 296355), (115, 275739), (321, 98785), (345, 91913), (535, 59271), (859, 36915), (1605, 19757), (2461, 12885), (2577, 12305), (4295, 7383)]