20156577

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{431}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 32845824

約数和(自身を除く): 12689247

約数列:

[1, 3, 7, 17, 21, 51, 119, 131, 357, 393, 431, 917, 1293, 2227, 2751, 3017, 6681, 7327, 9051, 15589, 21981, 46767, 51289, 56461, 153867, 169383, 395227, 959837, 1185681, 2879511, 6718859, 20156577]

約数ペア:

[(1, 20156577), (3, 6718859), (7, 2879511), (17, 1185681), (21, 959837), (51, 395227), (119, 169383), (131, 153867), (357, 56461), (393, 51289), (431, 46767), (917, 21981), (1293, 15589), (2227, 9051), (2751, 7327), (3017, 6681)]