21481070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{443}}^1$

素因数の和:836

約数の個数: 32

約数和(自身を含む): 41846112

約数和(自身を除く): 20365042

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 373, 443, 746, 886, 1865, 2215, 3730, 4430, 4849, 5759, 9698, 11518, 24245, 28795, 48490, 57590, 165239, 330478, 826195, 1652390, 2148107, 4296214, 10740535, 21481070]

約数ペア:

[(1, 21481070), (2, 10740535), (5, 4296214), (10, 2148107), (13, 1652390), (26, 826195), (65, 330478), (130, 165239), (373, 57590), (443, 48490), (746, 28795), (886, 24245), (1865, 11518), (2215, 9698), (3730, 5759), (4430, 4849)]