2155881

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 3628800

約数和(自身を除く): 1472919

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 149, 159, 273, 371, 447, 689, 1043, 1113, 1937, 2067, 3129, 4823, 5811, 7897, 13559, 14469, 23691, 40677, 55279, 102661, 165837, 307983, 718627, 2155881]

約数ペア:

[(1, 2155881), (3, 718627), (7, 307983), (13, 165837), (21, 102661), (39, 55279), (53, 40677), (91, 23691), (149, 14469), (159, 13559), (273, 7897), (371, 5811), (447, 4823), (689, 3129), (1043, 2067), (1113, 1937)]