221420817

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{2083}}^1$

素因数の和:2250

約数の個数: 32

約数和(自身を含む): 341442560

約数和(自身を除く): 120021743

約数列:

[1, 3, 9, 27, 31, 93, 127, 279, 381, 837, 1143, 2083, 3429, 3937, 6249, 11811, 18747, 35433, 56241, 64573, 106299, 193719, 264541, 581157, 793623, 1743471, 2380869, 7142607, 8200771, 24602313, 73806939, 221420817]

約数ペア:

[(1, 221420817), (3, 73806939), (9, 24602313), (27, 8200771), (31, 7142607), (93, 2380869), (127, 1743471), (279, 793623), (381, 581157), (837, 264541), (1143, 193719), (2083, 106299), (3429, 64573), (3937, 56241), (6249, 35433), (11811, 18747)]