12187945

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31657}}^1$

素因数の和:31680

約数の個数: 16

約数和(自身を含む): 18235008

約数和(自身を除く): 6047063

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 31657, 158285, 221599, 348227, 1107995, 1741135, 2437589, 12187945]

約数ペア:

[(1, 12187945), (5, 2437589), (7, 1741135), (11, 1107995), (35, 348227), (55, 221599), (77, 158285), (385, 31657)]