20921404

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24103}}^1$

素因数の和:24145

約数の個数: 24

約数和(自身を含む): 43194368

約数和(自身を除く): 22272964

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 24103, 48206, 96412, 168721, 337442, 674884, 747193, 1494386, 2988772, 5230351, 10460702, 20921404]

約数ペア:

[(1, 20921404), (2, 10460702), (4, 5230351), (7, 2988772), (14, 1494386), (28, 747193), (31, 674884), (62, 337442), (124, 168721), (217, 96412), (434, 48206), (868, 24103)]