15861897

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{241}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 23557248

約数和(自身を除く): 7695351

約数列:

[1, 3, 9, 71, 103, 213, 241, 309, 639, 723, 927, 2169, 7313, 17111, 21939, 24823, 51333, 65817, 74469, 153999, 223407, 1762433, 5287299, 15861897]

約数ペア:

[(1, 15861897), (3, 5287299), (9, 1762433), (71, 223407), (103, 153999), (213, 74469), (241, 65817), (309, 51333), (639, 24823), (723, 21939), (927, 17111), (2169, 7313)]