21714719

素因数分解:

${\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:410

約数の個数: 16

約数和(自身を含む): 24060960

約数和(自身を除く): 2346241

約数列:

[1, 13, 61, 139, 197, 793, 1807, 2561, 8479, 12017, 27383, 110227, 156221, 355979, 1670363, 21714719]

約数ペア:

[(1, 21714719), (13, 1670363), (61, 355979), (139, 156221), (197, 110227), (793, 27383), (1807, 12017), (2561, 8479)]