20201409891

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{351653}}^1$

素因数の和:352163

約数の個数: 24

約数和(自身を含む): 31488505776

約数和(自身を除く): 11287095885

約数列:

[1, 3, 9, 13, 39, 117, 491, 1473, 4419, 6383, 19149, 57447, 351653, 1054959, 3164877, 4571489, 13714467, 41143401, 172661623, 517984869, 1553954607, 2244601099, 6733803297, 20201409891]

約数ペア:

[(1, 20201409891), (3, 6733803297), (9, 2244601099), (13, 1553954607), (39, 517984869), (117, 172661623), (491, 41143401), (1473, 13714467), (4419, 4571489), (6383, 3164877), (19149, 1054959), (57447, 351653)]