20840472

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{7823}}^1$

素因数の和:7872

約数の個数: 48

約数和(自身を含む): 57975840

約数和(自身を除く): 37135368

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 72, 74, 111, 148, 222, 296, 333, 444, 666, 888, 1332, 2664, 7823, 15646, 23469, 31292, 46938, 62584, 70407, 93876, 140814, 187752, 281628, 289451, 563256, 578902, 868353, 1157804, 1736706, 2315608, 2605059, 3473412, 5210118, 6946824, 10420236, 20840472]

約数ペア:

[(1, 20840472), (2, 10420236), (3, 6946824), (4, 5210118), (6, 3473412), (8, 2605059), (9, 2315608), (12, 1736706), (18, 1157804), (24, 868353), (36, 578902), (37, 563256), (72, 289451), (74, 281628), (111, 187752), (148, 140814), (222, 93876), (296, 70407), (333, 62584), (444, 46938), (666, 31292), (888, 23469), (1332, 15646), (2664, 7823)]