18453968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{88721}}^1$

素因数の和:88742

約数の個数: 20

約数和(自身を含む): 38505348

約数和(自身を除く): 20051380

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 88721, 177442, 354884, 709768, 1153373, 1419536, 2306746, 4613492, 9226984, 18453968]

約数ペア:

[(1, 18453968), (2, 9226984), (4, 4613492), (8, 2306746), (13, 1419536), (16, 1153373), (26, 709768), (52, 354884), (104, 177442), (208, 88721)]