19388876

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{653}}^1$

素因数の和:1241

約数の個数: 24

約数和(自身を含む): 36660624

約数和(自身を除く): 17271748

約数列:

[1, 2, 4, 13, 26, 52, 571, 653, 1142, 1306, 2284, 2612, 7423, 8489, 14846, 16978, 29692, 33956, 372863, 745726, 1491452, 4847219, 9694438, 19388876]

約数ペア:

[(1, 19388876), (2, 9694438), (4, 4847219), (13, 1491452), (26, 745726), (52, 372863), (571, 33956), (653, 29692), (1142, 16978), (1306, 14846), (2284, 8489), (2612, 7423)]