21903783

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{727}}^1$

素因数の和:835

約数の個数: 24

約数和(自身を含む): 32532864

約数和(自身を除く): 10629081

約数列:

[1, 3, 11, 33, 83, 121, 249, 363, 727, 913, 2181, 2739, 7997, 10043, 23991, 30129, 60341, 87967, 181023, 263901, 663751, 1991253, 7301261, 21903783]

約数ペア:

[(1, 21903783), (3, 7301261), (11, 1991253), (33, 663751), (83, 263901), (121, 181023), (249, 87967), (363, 60341), (727, 30129), (913, 23991), (2181, 10043), (2739, 7997)]