19878872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{191143}}^1$

素因数の和:191162

約数の個数: 16

約数和(自身を含む): 40140240

約数和(自身を除く): 20261368

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 191143, 382286, 764572, 1529144, 2484859, 4969718, 9939436, 19878872]

約数ペア:

[(1, 19878872), (2, 9939436), (4, 4969718), (8, 2484859), (13, 1529144), (26, 764572), (52, 382286), (104, 191143)]