61981479

素因数分解:

$3^2\times 7^1\times {\mathrm{571}}^1\times {\mathrm{1723}}^1$

素因数の和:2307

約数の個数: 24

約数和(自身を含む): 102557312

約数和(自身を除く): 40575833

約数列:

[1, 3, 7, 9, 21, 63, 571, 1713, 1723, 3997, 5139, 5169, 11991, 12061, 15507, 35973, 36183, 108549, 983833, 2951499, 6886831, 8854497, 20660493, 61981479]

約数ペア:

[(1, 61981479), (3, 20660493), (7, 8854497), (9, 6886831), (21, 2951499), (63, 983833), (571, 108549), (1713, 36183), (1723, 35973), (3997, 15507), (5139, 12061), (5169, 11991)]