20956310

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67601}}^1$

素因数の和:67639

約数の個数: 16

約数和(自身を含む): 38938752

約数和(自身を除く): 17982442

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 67601, 135202, 338005, 676010, 2095631, 4191262, 10478155, 20956310]

約数ペア:

[(1, 20956310), (2, 10478155), (5, 4191262), (10, 2095631), (31, 676010), (62, 338005), (155, 135202), (310, 67601)]