21849515

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{2011}}^1$

素因数の和:2110

約数の個数: 16

約数和(自身を含む): 27379296

約数和(自身を除く): 5529781

約数列:

[1, 5, 41, 53, 205, 265, 2011, 2173, 10055, 10865, 82451, 106583, 412255, 532915, 4369903, 21849515]

約数ペア:

[(1, 21849515), (5, 4369903), (41, 532915), (53, 412255), (205, 106583), (265, 82451), (2011, 10865), (2173, 10055)]