20672895

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32051}}^1$

素因数の和:32102

約数の個数: 16

約数和(自身を含む): 33846912

約数和(自身を除く): 13174017

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32051, 96153, 160255, 480765, 1378193, 4134579, 6890965, 20672895]

約数ペア:

[(1, 20672895), (3, 6890965), (5, 4134579), (15, 1378193), (43, 480765), (129, 160255), (215, 96153), (645, 32051)]