20521010

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{33641}}^1$

素因数の和:33709

約数の個数: 16

約数和(自身を含む): 37544472

約数和(自身を除く): 17023462

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 33641, 67282, 168205, 336410, 2052101, 4104202, 10260505, 20521010]

約数ペア:

[(1, 20521010), (2, 10260505), (5, 4104202), (10, 2052101), (61, 336410), (122, 168205), (305, 67282), (610, 33641)]