21475971

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{4093}}^1$

素因数の和:4163

約数の個数: 24

約数和(自身を含む): 34487856

約数和(自身を除く): 13011885

約数列:

[1, 3, 9, 11, 33, 53, 99, 159, 477, 583, 1749, 4093, 5247, 12279, 36837, 45023, 135069, 216929, 405207, 650787, 1952361, 2386219, 7158657, 21475971]

約数ペア:

[(1, 21475971), (3, 7158657), (9, 2386219), (11, 1952361), (33, 650787), (53, 405207), (99, 216929), (159, 135069), (477, 45023), (583, 36837), (1749, 12279), (4093, 5247)]