221520021

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{571}}^1\times {\mathrm{1453}}^1$

素因数の和:2116

約数の個数: 16

約数和(自身を含む): 299407680

約数和(自身を除く): 77887659

約数列:

[1, 3, 89, 267, 571, 1453, 1713, 4359, 50819, 129317, 152457, 387951, 829663, 2488989, 73840007, 221520021]

約数ペア:

[(1, 221520021), (3, 73840007), (89, 2488989), (267, 829663), (571, 387951), (1453, 152457), (1713, 129317), (4359, 50819)]