20984150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{38153}}^1$

素因数の和:38176

約数の個数: 24

約数和(自身を含む): 42579864

約数和(自身を除く): 21595714

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, 550, 38153, 76306, 190765, 381530, 419683, 839366, 953825, 1907650, 2098415, 4196830, 10492075, 20984150]

約数ペア:

[(1, 20984150), (2, 10492075), (5, 4196830), (10, 2098415), (11, 1907650), (22, 953825), (25, 839366), (50, 419683), (55, 381530), (110, 190765), (275, 76306), (550, 38153)]