251017881

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{571}}^1$

素因数の和:797

約数の個数: 32

約数和(自身を含む): 360222720

約数和(自身を除く): 109204839

約数列:

[1, 3, 29, 31, 87, 93, 163, 489, 571, 899, 1713, 2697, 4727, 5053, 14181, 15159, 16559, 17701, 49677, 53103, 93073, 146537, 279219, 439611, 513329, 1539987, 2699117, 2885263, 8097351, 8655789, 83672627, 251017881]

約数ペア:

[(1, 251017881), (3, 83672627), (29, 8655789), (31, 8097351), (87, 2885263), (93, 2699117), (163, 1539987), (489, 513329), (571, 439611), (899, 279219), (1713, 146537), (2697, 93073), (4727, 53103), (5053, 49677), (14181, 17701), (15159, 16559)]