21374470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164419}}^1$

素因数の和:164439

約数の個数: 16

約数和(自身を含む): 41433840

約数和(自身を除く): 20059370

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 164419, 328838, 822095, 1644190, 2137447, 4274894, 10687235, 21374470]

約数ペア:

[(1, 21374470), (2, 10687235), (5, 4274894), (10, 2137447), (13, 1644190), (26, 822095), (65, 328838), (130, 164419)]