20178207

素因数分解:

$3^3\times 7^1\times {\mathrm{241}}^1\times {\mathrm{443}}^1$

素因数の和:700

約数の個数: 32

約数和(自身を含む): 34383360

約数和(自身を除く): 14205153

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 241, 443, 723, 1329, 1687, 2169, 3101, 3987, 5061, 6507, 9303, 11961, 15183, 27909, 45549, 83727, 106763, 320289, 747341, 960867, 2242023, 2882601, 6726069, 20178207]

約数ペア:

[(1, 20178207), (3, 6726069), (7, 2882601), (9, 2242023), (21, 960867), (27, 747341), (63, 320289), (189, 106763), (241, 83727), (443, 45549), (723, 27909), (1329, 15183), (1687, 11961), (2169, 9303), (3101, 6507), (3987, 5061)]