19881524

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20123}}^1$

素因数の和:20159

約数の個数: 24

約数和(自身を含む): 39443040

約数和(自身を除く): 19561516

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 20123, 40246, 80492, 261599, 382337, 523198, 764674, 1046396, 1529348, 4970381, 9940762, 19881524]

約数ペア:

[(1, 19881524), (2, 9940762), (4, 4970381), (13, 1529348), (19, 1046396), (26, 764674), (38, 523198), (52, 382337), (76, 261599), (247, 80492), (494, 40246), (988, 20123)]