21202004

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{89839}}^1$

素因数の和:89902

約数の個数: 12

約数和(自身を含む): 37732800

約数和(自身を除く): 16530796

約数列:

[1, 2, 4, 59, 118, 236, 89839, 179678, 359356, 5300501, 10601002, 21202004]

約数ペア:

[(1, 21202004), (2, 10601002), (4, 5300501), (59, 359356), (118, 179678), (236, 89839)]