19799728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{95191}}^1$

素因数の和:95212

約数の個数: 20

約数和(自身を含む): 41313328

約数和(自身を除く): 21513600

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 95191, 190382, 380764, 761528, 1237483, 1523056, 2474966, 4949932, 9899864, 19799728]

約数ペア:

[(1, 19799728), (2, 9899864), (4, 4949932), (8, 2474966), (13, 1523056), (16, 1237483), (26, 761528), (52, 380764), (104, 190382), (208, 95191)]