21001112

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{238649}}^1$

素因数の和:238666

約数の個数: 16

約数和(自身を含む): 42957000

約数和(自身を除く): 21955888

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 238649, 477298, 954596, 1909192, 2625139, 5250278, 10500556, 21001112]

約数ペア:

[(1, 21001112), (2, 10500556), (4, 5250278), (8, 2625139), (11, 1909192), (22, 954596), (44, 477298), (88, 238649)]