20464899

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{10709}}^1$

素因数の和:10739

約数の個数: 24

約数和(自身を含む): 34186320

約数和(自身を除く): 13721421

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 10709, 32127, 74963, 139217, 224889, 417651, 524741, 974519, 1574223, 2923557, 6821633, 20464899]

約数ペア:

[(1, 20464899), (3, 6821633), (7, 2923557), (13, 1574223), (21, 974519), (39, 524741), (49, 417651), (91, 224889), (147, 139217), (273, 74963), (637, 32127), (1911, 10709)]