21615976

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{158941}}^1$

素因数の和:158964

約数の個数: 16

約数和(自身を含む): 42914340

約数和(自身を除く): 21298364

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 158941, 317882, 635764, 1271528, 2701997, 5403994, 10807988, 21615976]

約数ペア:

[(1, 21615976), (2, 10807988), (4, 5403994), (8, 2701997), (17, 1271528), (34, 635764), (68, 317882), (136, 158941)]