20540793

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1123}}^1$

素因数の和:1213

約数の個数: 32

約数和(自身を含む): 34241536

約数和(自身を除く): 13700743

約数列:

[1, 3, 7, 13, 21, 39, 67, 91, 201, 273, 469, 871, 1123, 1407, 2613, 3369, 6097, 7861, 14599, 18291, 23583, 43797, 75241, 102193, 225723, 306579, 526687, 978133, 1580061, 2934399, 6846931, 20540793]

約数ペア:

[(1, 20540793), (3, 6846931), (7, 2934399), (13, 1580061), (21, 978133), (39, 526687), (67, 306579), (91, 225723), (201, 102193), (273, 75241), (469, 43797), (871, 23583), (1123, 18291), (1407, 14599), (2613, 7861), (3369, 6097)]