221694557

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{2609}}^1$

素因数の和:2876

約数の個数: 16

約数和(自身を含む): 258912000

約数和(自身を除く): 37217443

約数列:

[1, 7, 61, 199, 427, 1393, 2609, 12139, 18263, 84973, 159149, 519191, 1114043, 3634337, 31670651, 221694557]

約数ペア:

[(1, 221694557), (7, 31670651), (61, 3634337), (199, 1114043), (427, 519191), (1393, 159149), (2609, 84973), (12139, 18263)]