18681871

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{307}}^1$

素因数の和:502

約数の個数: 16

約数和(自身を含む): 20973568

約数和(自身を除く): 2291697

約数列:

[1, 13, 31, 151, 307, 403, 1963, 3991, 4681, 9517, 46357, 60853, 123721, 602641, 1437067, 18681871]

約数ペア:

[(1, 18681871), (13, 1437067), (31, 602641), (151, 123721), (307, 60853), (403, 46357), (1963, 9517), (3991, 4681)]