20485647

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25013}}^1$

素因数の和:25039

約数の個数: 24

約数和(自身を含む): 36420384

約数和(自身を除く): 15934737

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 25013, 75039, 175091, 225117, 325169, 525273, 975507, 1575819, 2276183, 2926521, 6828549, 20485647]

約数ペア:

[(1, 20485647), (3, 6828549), (7, 2926521), (9, 2276183), (13, 1575819), (21, 975507), (39, 525273), (63, 325169), (91, 225117), (117, 175091), (273, 75039), (819, 25013)]