19922305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9887}}^1$

素因数の和:9936

約数の個数: 16

約数和(自身を含む): 26578944

約数和(自身を除く): 6656639

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 9887, 49435, 128531, 306497, 642655, 1532485, 3984461, 19922305]

約数ペア:

[(1, 19922305), (5, 3984461), (13, 1532485), (31, 642655), (65, 306497), (155, 128531), (403, 49435), (2015, 9887)]