21000888006

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{491}}^1\times {\mathrm{2687}}^1$

素因数の和:3569

約数の個数: 64

約数和(自身を含む): 48244654080

約数和(自身を除く): 27243766074

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 379, 491, 758, 982, 1137, 1473, 2274, 2653, 2687, 2946, 3437, 5306, 5374, 6874, 7959, 8061, 10311, 15918, 16122, 18809, 20622, 37618, 56427, 112854, 186089, 372178, 558267, 1018373, 1116534, 1302623, 1319317, 2036746, 2605246, 2638634, 3055119, 3907869, 3957951, 6110238, 7128611, 7815738, 7915902, 9235219, 14257222, 18470438, 21385833, 27705657, 42771666, 55411314, 500021143, 1000042286, 1500063429, 3000126858, 3500148001, 7000296002, 10500444003, 21000888006]

約数ペア:

[(1, 21000888006), (2, 10500444003), (3, 7000296002), (6, 3500148001), (7, 3000126858), (14, 1500063429), (21, 1000042286), (42, 500021143), (379, 55411314), (491, 42771666), (758, 27705657), (982, 21385833), (1137, 18470438), (1473, 14257222), (2274, 9235219), (2653, 7915902), (2687, 7815738), (2946, 7128611), (3437, 6110238), (5306, 3957951), (5374, 3907869), (6874, 3055119), (7959, 2638634), (8061, 2605246), (10311, 2036746), (15918, 1319317), (16122, 1302623), (18809, 1116534), (20622, 1018373), (37618, 558267), (56427, 372178), (112854, 186089)]