20018955

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{121327}}^1$

素因数の和:121346

約数の個数: 16

約数和(自身を含む): 34942464

約数和(自身を除く): 14923509

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 121327, 363981, 606635, 1334597, 1819905, 4003791, 6672985, 20018955]

約数ペア:

[(1, 20018955), (3, 6672985), (5, 4003791), (11, 1819905), (15, 1334597), (33, 606635), (55, 363981), (165, 121327)]