31889241

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 49392000

約数和(自身を除く): 17502759

約数列:

[1, 3, 9, 27, 29, 87, 139, 261, 293, 417, 783, 879, 1251, 2637, 3753, 4031, 7911, 8497, 12093, 25491, 36279, 40727, 76473, 108837, 122181, 229419, 366543, 1099629, 1181083, 3543249, 10629747, 31889241]

約数ペア:

[(1, 31889241), (3, 10629747), (9, 3543249), (27, 1181083), (29, 1099629), (87, 366543), (139, 229419), (261, 122181), (293, 108837), (417, 76473), (783, 40727), (879, 36279), (1251, 25491), (2637, 12093), (3753, 8497), (4031, 7911)]