20544657

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 32554752

約数和(自身を除く): 12010095

約数列:

[1, 3, 7, 21, 37, 111, 137, 193, 259, 411, 579, 777, 959, 1351, 2877, 4053, 5069, 7141, 15207, 21423, 26441, 35483, 49987, 79323, 106449, 149961, 185087, 555261, 978317, 2934951, 6848219, 20544657]

約数ペア:

[(1, 20544657), (3, 6848219), (7, 2934951), (21, 978317), (37, 555261), (111, 185087), (137, 149961), (193, 106449), (259, 79323), (411, 49987), (579, 35483), (777, 26441), (959, 21423), (1351, 15207), (2877, 7141), (4053, 5069)]