19500496

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71693}}^1$

素因数の和:71718

約数の個数: 20

約数和(自身を含む): 40005252

約数和(自身を除く): 20504756

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 71693, 143386, 286772, 573544, 1147088, 1218781, 2437562, 4875124, 9750248, 19500496]

約数ペア:

[(1, 19500496), (2, 9750248), (4, 4875124), (8, 2437562), (16, 1218781), (17, 1147088), (34, 573544), (68, 286772), (136, 143386), (272, 71693)]