19618768

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{94321}}^1$

素因数の和:94342

約数の個数: 20

約数和(自身を含む): 40935748

約数和(自身を除く): 21316980

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 94321, 188642, 377284, 754568, 1226173, 1509136, 2452346, 4904692, 9809384, 19618768]

約数ペア:

[(1, 19618768), (2, 9809384), (4, 4904692), (8, 2452346), (13, 1509136), (16, 1226173), (26, 754568), (52, 377284), (104, 188642), (208, 94321)]