21633872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{104009}}^1$

素因数の和:104030

約数の個数: 20

約数和(自身を含む): 45140340

約数和(自身を除く): 23506468

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 104009, 208018, 416036, 832072, 1352117, 1664144, 2704234, 5408468, 10816936, 21633872]

約数ペア:

[(1, 21633872), (2, 10816936), (4, 5408468), (8, 2704234), (13, 1664144), (16, 1352117), (26, 832072), (52, 416036), (104, 208018), (208, 104009)]