20539910

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{120823}}^1$

素因数の和:120847

約数の個数: 16

約数和(自身を含む): 39146976

約数和(自身を除く): 18607066

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 120823, 241646, 604115, 1208230, 2053991, 4107982, 10269955, 20539910]

約数ペア:

[(1, 20539910), (2, 10269955), (5, 4107982), (10, 2053991), (17, 1208230), (34, 604115), (85, 241646), (170, 120823)]