28694939

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{421}}^1$

素因数の和:555

約数の個数: 24

約数和(自身を含む): 36369648

約数和(自身を除く): 7674709

約数列:

[1, 7, 13, 49, 91, 107, 421, 637, 749, 1391, 2947, 5243, 5473, 9737, 20629, 38311, 45047, 68159, 268177, 315329, 585611, 2207303, 4099277, 28694939]

約数ペア:

[(1, 28694939), (7, 4099277), (13, 2207303), (49, 585611), (91, 315329), (107, 268177), (421, 68159), (637, 45047), (749, 38311), (1391, 20629), (2947, 9737), (5243, 5473)]