21041004080

素因数分解:

$2^4\times 5^1\times {\mathrm{263012551}}^1$

素因数の和:263012564

約数の個数: 20

約数和(自身を含む): 48920334672

約数和(自身を除く): 27879330592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263012551, 526025102, 1052050204, 1315062755, 2104100408, 2630125510, 4208200816, 5260251020, 10520502040, 21041004080]

約数ペア:

[(1, 21041004080), (2, 10520502040), (4, 5260251020), (5, 4208200816), (8, 2630125510), (10, 2104100408), (16, 1315062755), (20, 1052050204), (40, 526025102), (80, 263012551)]