16564009

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:493

約数の個数: 24

約数和(自身を含む): 21340800

約数和(自身を除く): 4776791

約数列:

[1, 7, 11, 49, 77, 79, 389, 539, 553, 869, 2723, 3871, 4279, 6083, 19061, 29953, 30731, 42581, 209671, 215117, 338041, 1505819, 2366287, 16564009]

約数ペア:

[(1, 16564009), (7, 2366287), (11, 1505819), (49, 338041), (77, 215117), (79, 209671), (389, 42581), (539, 30731), (553, 29953), (869, 19061), (2723, 6083), (3871, 4279)]