19924420

素因数分解:

$2^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{2161}}^1$

素因数の和:2631

約数の個数: 24

約数和(自身を含む): 41951448

約数和(自身を除く): 22027028

約数列:

[1, 2, 4, 5, 10, 20, 461, 922, 1844, 2161, 2305, 4322, 4610, 8644, 9220, 10805, 21610, 43220, 996221, 1992442, 3984884, 4981105, 9962210, 19924420]

約数ペア:

[(1, 19924420), (2, 9962210), (4, 4981105), (5, 3984884), (10, 1992442), (20, 996221), (461, 43220), (922, 21610), (1844, 10805), (2161, 9220), (2305, 8644), (4322, 4610)]