13306221

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:282

約数の個数: 32

約数和(自身を含む): 20577920

約数和(自身を除く): 7271699

約数列:

[1, 3, 9, 27, 43, 73, 129, 157, 219, 387, 471, 657, 1161, 1413, 1971, 3139, 4239, 6751, 9417, 11461, 20253, 28251, 34383, 60759, 84753, 103149, 182277, 309447, 492823, 1478469, 4435407, 13306221]

約数ペア:

[(1, 13306221), (3, 4435407), (9, 1478469), (27, 492823), (43, 309447), (73, 182277), (129, 103149), (157, 84753), (219, 60759), (387, 34383), (471, 28251), (657, 20253), (1161, 11461), (1413, 9417), (1971, 6751), (3139, 4239)]