20712184

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{42443}}^1$

素因数の和:42510

約数の個数: 16

約数和(自身を含む): 39472920

約数和(自身を除く): 18760736

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 42443, 84886, 169772, 339544, 2589023, 5178046, 10356092, 20712184]

約数ペア:

[(1, 20712184), (2, 10356092), (4, 5178046), (8, 2589023), (61, 339544), (122, 169772), (244, 84886), (488, 42443)]