19989304

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{60943}}^1$

素因数の和:60990

約数の個数: 16

約数和(自身を含む): 38394720

約数和(自身を除く): 18405416

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 60943, 121886, 243772, 487544, 2498663, 4997326, 9994652, 19989304]

約数ペア:

[(1, 19989304), (2, 9994652), (4, 4997326), (8, 2498663), (41, 487544), (82, 243772), (164, 121886), (328, 60943)]