20557485

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35141}}^1$

素因数の和:35165

約数の個数: 24

約数和(自身を含む): 38375064

約数和(自身を除く): 17817579

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 35141, 105423, 175705, 316269, 456833, 527115, 1370499, 1581345, 2284165, 4111497, 6852495, 20557485]

約数ペア:

[(1, 20557485), (3, 6852495), (5, 4111497), (9, 2284165), (13, 1581345), (15, 1370499), (39, 527115), (45, 456833), (65, 316269), (117, 175705), (195, 105423), (585, 35141)]