21311264

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{51229}}^1$

素因数の和:51252

約数の個数: 24

約数和(自身を含む): 45184860

約数和(自身を除く): 23873596

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 51229, 102458, 204916, 409832, 665977, 819664, 1331954, 1639328, 2663908, 5327816, 10655632, 21311264]

約数ペア:

[(1, 21311264), (2, 10655632), (4, 5327816), (8, 2663908), (13, 1639328), (16, 1331954), (26, 819664), (32, 665977), (52, 409832), (104, 204916), (208, 102458), (416, 51229)]