21812478

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{51203}}^1$

素因数の和:51279

約数の個数: 16

約数和(自身を含む): 44240256

約数和(自身を除く): 22427778

約数列:

[1, 2, 3, 6, 71, 142, 213, 426, 51203, 102406, 153609, 307218, 3635413, 7270826, 10906239, 21812478]

約数ペア:

[(1, 21812478), (2, 10906239), (3, 7270826), (6, 3635413), (71, 307218), (142, 153609), (213, 102406), (426, 51203)]