19929010

素因数分解:

$2^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{2011}}^1$

素因数の和:3009

約数の個数: 16

約数和(自身を含む): 35926272

約数和(自身を除く): 15997262

約数列:

[1, 2, 5, 10, 991, 1982, 2011, 4022, 4955, 9910, 10055, 20110, 1992901, 3985802, 9964505, 19929010]

約数ペア:

[(1, 19929010), (2, 9964505), (5, 3985802), (10, 1992901), (991, 20110), (1982, 10055), (2011, 9910), (4022, 4955)]