21495916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21757}}^1$

素因数の和:21793

約数の個数: 24

約数和(自身を含む): 42645680

約数和(自身を除く): 21149764

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21757, 43514, 87028, 282841, 413383, 565682, 826766, 1131364, 1653532, 5373979, 10747958, 21495916]

約数ペア:

[(1, 21495916), (2, 10747958), (4, 5373979), (13, 1653532), (19, 1131364), (26, 826766), (38, 565682), (52, 413383), (76, 282841), (247, 87028), (494, 43514), (988, 21757)]