20905988

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{13367}}^1$

素因数の和:13411

約数の個数: 24

約数和(自身を含む): 40424832

約数和(自身を除く): 19518844

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 92, 391, 782, 1564, 13367, 26734, 53468, 227239, 307441, 454478, 614882, 908956, 1229764, 5226497, 10452994, 20905988]

約数ペア:

[(1, 20905988), (2, 10452994), (4, 5226497), (17, 1229764), (23, 908956), (34, 614882), (46, 454478), (68, 307441), (92, 227239), (391, 53468), (782, 26734), (1564, 13367)]