21771269

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{607}}^1$

素因数の和:740

約数の個数: 16

約数和(自身を含む): 24514560

約数和(自身を除く): 2743291

約数列:

[1, 13, 31, 89, 403, 607, 1157, 2759, 7891, 18817, 35867, 54023, 244621, 702299, 1674713, 21771269]

約数ペア:

[(1, 21771269), (13, 1674713), (31, 702299), (89, 244621), (403, 54023), (607, 35867), (1157, 18817), (2759, 7891)]