221420061

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{51577}}^1$

素因数の和:51642

約数の個数: 20

約数和(自身を含む): 337010652

約数和(自身を除く): 115590591

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 51577, 154731, 464193, 1392579, 2733581, 4177737, 8200743, 24602229, 73806687, 221420061]

約数ペア:

[(1, 221420061), (3, 73806687), (9, 24602229), (27, 8200743), (53, 4177737), (81, 2733581), (159, 1392579), (477, 464193), (1431, 154731), (4293, 51577)]