18663855

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{379}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 35349120

約数和(自身を除く): 16685265

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 67, 105, 147, 201, 245, 335, 379, 469, 735, 1005, 1137, 1407, 1895, 2345, 2653, 3283, 5685, 7035, 7959, 9849, 13265, 16415, 18571, 25393, 39795, 49245, 55713, 76179, 92855, 126965, 177751, 278565, 380895, 533253, 888755, 1244257, 2666265, 3732771, 6221285, 18663855]

約数ペア:

[(1, 18663855), (3, 6221285), (5, 3732771), (7, 2666265), (15, 1244257), (21, 888755), (35, 533253), (49, 380895), (67, 278565), (105, 177751), (147, 126965), (201, 92855), (245, 76179), (335, 55713), (379, 49245), (469, 39795), (735, 25393), (1005, 18571), (1137, 16415), (1407, 13265), (1895, 9849), (2345, 7959), (2653, 7035), (3283, 5685)]