21381196

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{641}}^1$

素因数の和:945

約数の個数: 24

約数和(自身を含む): 38828160

約数和(自身を除く): 17446964

約数列:

[1, 2, 4, 31, 62, 124, 269, 538, 641, 1076, 1282, 2564, 8339, 16678, 19871, 33356, 39742, 79484, 172429, 344858, 689716, 5345299, 10690598, 21381196]

約数ペア:

[(1, 21381196), (2, 10690598), (4, 5345299), (31, 689716), (62, 344858), (124, 172429), (269, 79484), (538, 39742), (641, 33356), (1076, 19871), (1282, 16678), (2564, 8339)]