21000659408

素因数分解:

$2^4\times {\mathrm{263}}^1\times {\mathrm{709}}^1\times {\mathrm{7039}}^1$

素因数の和:8019

約数の個数: 40

約数和(自身を含む): 40906905600

約数和(自身を除く): 19906246192

約数列:

[1, 2, 4, 8, 16, 263, 526, 709, 1052, 1418, 2104, 2836, 4208, 5672, 7039, 11344, 14078, 28156, 56312, 112624, 186467, 372934, 745868, 1491736, 1851257, 2983472, 3702514, 4990651, 7405028, 9981302, 14810056, 19962604, 29620112, 39925208, 79850416, 1312541213, 2625082426, 5250164852, 10500329704, 21000659408]

約数ペア:

[(1, 21000659408), (2, 10500329704), (4, 5250164852), (8, 2625082426), (16, 1312541213), (263, 79850416), (526, 39925208), (709, 29620112), (1052, 19962604), (1418, 14810056), (2104, 9981302), (2836, 7405028), (4208, 4990651), (5672, 3702514), (7039, 2983472), (11344, 1851257), (14078, 1491736), (28156, 745868), (56312, 372934), (112624, 186467)]