21328072

素因数分解:

$2^3\times {\mathrm{113}}^1\times {\mathrm{23593}}^1$

素因数の和:23712

約数の個数: 16

約数和(自身を含む): 40345740

約数和(自身を除く): 19017668

約数列:

[1, 2, 4, 8, 113, 226, 452, 904, 23593, 47186, 94372, 188744, 2666009, 5332018, 10664036, 21328072]

約数ペア:

[(1, 21328072), (2, 10664036), (4, 5332018), (8, 2666009), (113, 188744), (226, 94372), (452, 47186), (904, 23593)]