20978436

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{12577}}^1$

素因数の和:12723

約数の個数: 24

約数和(自身を含む): 49305760

約数和(自身を除く): 28327324

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 12577, 25154, 37731, 50308, 75462, 150924, 1748203, 3496406, 5244609, 6992812, 10489218, 20978436]

約数ペア:

[(1, 20978436), (2, 10489218), (3, 6992812), (4, 5244609), (6, 3496406), (12, 1748203), (139, 150924), (278, 75462), (417, 50308), (556, 37731), (834, 25154), (1668, 12577)]