21824140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83939}}^1$

素因数の和:83961

約数の個数: 24

約数和(自身を含む): 49356720

約数和(自身を除く): 27532580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 83939, 167878, 335756, 419695, 839390, 1091207, 1678780, 2182414, 4364828, 5456035, 10912070, 21824140]

約数ペア:

[(1, 21824140), (2, 10912070), (4, 5456035), (5, 4364828), (10, 2182414), (13, 1678780), (20, 1091207), (26, 839390), (52, 419695), (65, 335756), (130, 167878), (260, 83939)]