21065396

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{2269}}^1$

素因数の和:2495

約数の個数: 24

約数和(自身を含む): 40424160

約数和(自身を除く): 19358764

約数列:

[1, 2, 4, 11, 22, 44, 211, 422, 844, 2269, 2321, 4538, 4642, 9076, 9284, 24959, 49918, 99836, 478759, 957518, 1915036, 5266349, 10532698, 21065396]

約数ペア:

[(1, 21065396), (2, 10532698), (4, 5266349), (11, 1915036), (22, 957518), (44, 478759), (211, 99836), (422, 49918), (844, 24959), (2269, 9284), (2321, 9076), (4538, 4642)]