21910399

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{907}}^1$

素因数の和:967

約数の個数: 24

約数和(自身を含む): 27948240

約数和(自身を除く): 6037841

約数列:

[1, 7, 17, 29, 49, 119, 203, 493, 833, 907, 1421, 3451, 6349, 15419, 24157, 26303, 44443, 107933, 184121, 447151, 755531, 1288847, 3130057, 21910399]

約数ペア:

[(1, 21910399), (7, 3130057), (17, 1288847), (29, 755531), (49, 447151), (119, 184121), (203, 107933), (493, 44443), (833, 26303), (907, 24157), (1421, 15419), (3451, 6349)]