20579013

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25127}}^1$

素因数の和:25153

約数の個数: 24

約数和(自身を含む): 36586368

約数和(自身を除く): 16007355

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 25127, 75381, 175889, 226143, 326651, 527667, 979953, 1583001, 2286557, 2939859, 6859671, 20579013]

約数ペア:

[(1, 20579013), (3, 6859671), (7, 2939859), (9, 2286557), (13, 1583001), (21, 979953), (39, 527667), (63, 326651), (91, 226143), (117, 175889), (273, 75381), (819, 25127)]