19643728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{94441}}^1$

素因数の和:94462

約数の個数: 20

約数和(自身を含む): 40987828

約数和(自身を除く): 21344100

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 94441, 188882, 377764, 755528, 1227733, 1511056, 2455466, 4910932, 9821864, 19643728]

約数ペア:

[(1, 19643728), (2, 9821864), (4, 4910932), (8, 2455466), (13, 1511056), (16, 1227733), (26, 755528), (52, 377764), (104, 188882), (208, 94441)]