21006984

素因数分解:

$2^3\times 3^1\times {\mathrm{419}}^1\times {\mathrm{2089}}^1$

素因数の和:2517

約数の個数: 32

約数和(自身を含む): 52668000

約数和(自身を除く): 31661016

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 419, 838, 1257, 1676, 2089, 2514, 3352, 4178, 5028, 6267, 8356, 10056, 12534, 16712, 25068, 50136, 875291, 1750582, 2625873, 3501164, 5251746, 7002328, 10503492, 21006984]

約数ペア:

[(1, 21006984), (2, 10503492), (3, 7002328), (4, 5251746), (6, 3501164), (8, 2625873), (12, 1750582), (24, 875291), (419, 50136), (838, 25068), (1257, 16712), (1676, 12534), (2089, 10056), (2514, 8356), (3352, 6267), (4178, 5028)]