20649561

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{829}}^1$

素因数の和:893

約数の個数: 24

約数和(自身を含む): 30358080

約数和(自身を除く): 9708519

約数列:

[1, 3, 19, 23, 57, 69, 361, 437, 829, 1083, 1311, 2487, 8303, 15751, 19067, 24909, 47253, 57201, 299269, 362273, 897807, 1086819, 6883187, 20649561]

約数ペア:

[(1, 20649561), (3, 6883187), (19, 1086819), (23, 897807), (57, 362273), (69, 299269), (361, 57201), (437, 47253), (829, 24909), (1083, 19067), (1311, 15751), (2487, 8303)]