20219792

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20717}}^1$

素因数の和:20786

約数の個数: 20

約数和(自身を含む): 39819996

約数和(自身を除く): 19600204

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20717, 41434, 82868, 165736, 331472, 1263737, 2527474, 5054948, 10109896, 20219792]

約数ペア:

[(1, 20219792), (2, 10109896), (4, 5054948), (8, 2527474), (16, 1263737), (61, 331472), (122, 165736), (244, 82868), (488, 41434), (976, 20717)]