20583507

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{449}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 32832000

約数和(自身を除く): 12248493

約数列:

[1, 3, 7, 21, 37, 59, 111, 177, 259, 413, 449, 777, 1239, 1347, 2183, 3143, 6549, 9429, 15281, 16613, 26491, 45843, 49839, 79473, 116291, 185437, 348873, 556311, 980167, 2940501, 6861169, 20583507]

約数ペア:

[(1, 20583507), (3, 6861169), (7, 2940501), (21, 980167), (37, 556311), (59, 348873), (111, 185437), (177, 116291), (259, 79473), (413, 49839), (449, 45843), (777, 26491), (1239, 16613), (1347, 15281), (2183, 9429), (3143, 6549)]