10821820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7621}}^1$

素因数の和:7701

約数の個数: 24

約数和(自身を含む): 23048928

約数和(自身を除く): 12227108

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 7621, 15242, 30484, 38105, 76210, 152420, 541091, 1082182, 2164364, 2705455, 5410910, 10821820]

約数ペア:

[(1, 10821820), (2, 5410910), (4, 2705455), (5, 2164364), (10, 1082182), (20, 541091), (71, 152420), (142, 76210), (284, 38105), (355, 30484), (710, 15242), (1420, 7621)]