21853030

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{50821}}^1$

素因数の和:50871

約数の個数: 16

約数和(自身を含む): 40251024

約数和(自身を除く): 18397994

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 50821, 101642, 254105, 508210, 2185303, 4370606, 10926515, 21853030]

約数ペア:

[(1, 21853030), (2, 10926515), (5, 4370606), (10, 2185303), (43, 508210), (86, 254105), (215, 101642), (430, 50821)]