87468577

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{647}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 106375680

約数和(自身を除く): 18907103

約数列:

[1, 7, 31, 49, 89, 217, 623, 647, 1519, 2759, 4361, 4529, 19313, 20057, 31703, 57583, 135191, 140399, 403081, 982793, 1785073, 2821567, 12495511, 87468577]

約数ペア:

[(1, 87468577), (7, 12495511), (31, 2821567), (49, 1785073), (89, 982793), (217, 403081), (623, 140399), (647, 135191), (1519, 57583), (2759, 31703), (4361, 20057), (4529, 19313)]