15918858

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:339

約数の個数: 48

約数和(自身を含む): 35788896

約数和(自身を除く): 19870038

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 131, 157, 258, 262, 314, 387, 393, 471, 774, 786, 942, 1179, 1413, 2358, 2826, 5633, 6751, 11266, 13502, 16899, 20253, 20567, 33798, 40506, 41134, 50697, 60759, 61701, 101394, 121518, 123402, 185103, 370206, 884381, 1768762, 2653143, 5306286, 7959429, 15918858]

約数ペア:

[(1, 15918858), (2, 7959429), (3, 5306286), (6, 2653143), (9, 1768762), (18, 884381), (43, 370206), (86, 185103), (129, 123402), (131, 121518), (157, 101394), (258, 61701), (262, 60759), (314, 50697), (387, 41134), (393, 40506), (471, 33798), (774, 20567), (786, 20253), (942, 16899), (1179, 13502), (1413, 11266), (2358, 6751), (2826, 5633)]