218170449

素因数分解:

$3^3\times 7^1\times {\mathrm{491}}^1\times {\mathrm{2351}}^1$

素因数の和:2858

約数の個数: 32

約数和(自身を含む): 370298880

約数和(自身を除く): 152128431

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 491, 1473, 2351, 3437, 4419, 7053, 10311, 13257, 16457, 21159, 30933, 49371, 63477, 92799, 148113, 444339, 1154341, 3463023, 8080387, 10389069, 24241161, 31167207, 72723483, 218170449]

約数ペア:

[(1, 218170449), (3, 72723483), (7, 31167207), (9, 24241161), (21, 10389069), (27, 8080387), (63, 3463023), (189, 1154341), (491, 444339), (1473, 148113), (2351, 92799), (3437, 63477), (4419, 49371), (7053, 30933), (10311, 21159), (13257, 16457)]