21349467

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{241}}^1$

素因数の和:460

約数の個数: 32

約数和(自身を含む): 33802560

約数和(自身を除く): 12453093

約数列:

[1, 3, 9, 17, 27, 51, 153, 193, 241, 459, 579, 723, 1737, 2169, 3281, 4097, 5211, 6507, 9843, 12291, 29529, 36873, 46513, 88587, 110619, 139539, 418617, 790721, 1255851, 2372163, 7116489, 21349467]

約数ペア:

[(1, 21349467), (3, 7116489), (9, 2372163), (17, 1255851), (27, 790721), (51, 418617), (153, 139539), (193, 110619), (241, 88587), (459, 46513), (579, 36873), (723, 29529), (1737, 12291), (2169, 9843), (3281, 6507), (4097, 5211)]