20564535

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31883}}^1$

素因数の和:31934

約数の個数: 16

約数和(自身を含む): 33669504

約数和(自身を除く): 13104969

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 31883, 95649, 159415, 478245, 1370969, 4112907, 6854845, 20564535]

約数ペア:

[(1, 20564535), (3, 6854845), (5, 4112907), (15, 1370969), (43, 478245), (129, 159415), (215, 95649), (645, 31883)]