21572135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4201}}^1$

素因数の和:4298

約数の個数: 16

約数和(自身を含む): 28237440

約数和(自身を除く): 6665305

約数列:

[1, 5, 13, 65, 79, 395, 1027, 4201, 5135, 21005, 54613, 273065, 331879, 1659395, 4314427, 21572135]

約数ペア:

[(1, 21572135), (5, 4314427), (13, 1659395), (65, 331879), (79, 273065), (395, 54613), (1027, 21005), (4201, 5135)]