21634443

素因数分解:

$3^2\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:475

約数の個数: 24

約数和(自身を含む): 32091696

約数和(自身を除く): 10457253

約数列:

[1, 3, 9, 61, 157, 183, 251, 471, 549, 753, 1413, 2259, 9577, 15311, 28731, 39407, 45933, 86193, 118221, 137799, 354663, 2403827, 7211481, 21634443]

約数ペア:

[(1, 21634443), (3, 7211481), (9, 2403827), (61, 354663), (157, 137799), (183, 118221), (251, 86193), (471, 45933), (549, 39407), (753, 28731), (1413, 15311), (2259, 9577)]