21819464

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{51461}}^1$

素因数の和:51520

約数の個数: 16

約数和(自身を含む): 41684220

約数和(自身を除く): 19864756

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 51461, 102922, 205844, 411688, 2727433, 5454866, 10909732, 21819464]

約数ペア:

[(1, 21819464), (2, 10909732), (4, 5454866), (8, 2727433), (53, 411688), (106, 205844), (212, 102922), (424, 51461)]