20211590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1669}}^1$

素因数の和:1856

約数の個数: 32

約数和(自身を含む): 41843520

約数和(自身を除く): 21631930

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 173, 346, 865, 1211, 1669, 1730, 2422, 3338, 6055, 8345, 11683, 12110, 16690, 23366, 58415, 116830, 288737, 577474, 1443685, 2021159, 2887370, 4042318, 10105795, 20211590]

約数ペア:

[(1, 20211590), (2, 10105795), (5, 4042318), (7, 2887370), (10, 2021159), (14, 1443685), (35, 577474), (70, 288737), (173, 116830), (346, 58415), (865, 23366), (1211, 16690), (1669, 12110), (1730, 11683), (2422, 8345), (3338, 6055)]