21743020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{347}}^1$

素因数の和:610

約数の個数: 48

約数和(自身を含む): 49519008

約数和(自身を除く): 27775988

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 241, 260, 347, 482, 694, 964, 1205, 1388, 1735, 2410, 3133, 3470, 4511, 4820, 6266, 6940, 9022, 12532, 15665, 18044, 22555, 31330, 45110, 62660, 83627, 90220, 167254, 334508, 418135, 836270, 1087151, 1672540, 2174302, 4348604, 5435755, 10871510, 21743020]

約数ペア:

[(1, 21743020), (2, 10871510), (4, 5435755), (5, 4348604), (10, 2174302), (13, 1672540), (20, 1087151), (26, 836270), (52, 418135), (65, 334508), (130, 167254), (241, 90220), (260, 83627), (347, 62660), (482, 45110), (694, 31330), (964, 22555), (1205, 18044), (1388, 15665), (1735, 12532), (2410, 9022), (3133, 6940), (3470, 6266), (4511, 4820)]