21444130

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{30203}}^1$

素因数の和:30281

約数の個数: 16

約数和(自身を含む): 39144384

約数和(自身を除く): 17700254

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 30203, 60406, 151015, 302030, 2144413, 4288826, 10722065, 21444130]

約数ペア:

[(1, 21444130), (2, 10722065), (5, 4288826), (10, 2144413), (71, 302030), (142, 151015), (355, 60406), (710, 30203)]