65471889

素因数分解:

$3^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{3251}}^1$

素因数の和:3405

約数の個数: 24

約数和(自身を含む): 102320928

約数和(自身を除く): 36849039

約数列:

[1, 3, 7, 21, 49, 137, 147, 411, 959, 2877, 3251, 6713, 9753, 20139, 22757, 68271, 159299, 445387, 477897, 1336161, 3117709, 9353127, 21823963, 65471889]

約数ペア:

[(1, 65471889), (3, 21823963), (7, 9353127), (21, 3117709), (49, 1336161), (137, 477897), (147, 445387), (411, 159299), (959, 68271), (2877, 22757), (3251, 20139), (6713, 9753)]