21000322581

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{571111}}^1$

素因数の和:571241

約数の個数: 32

約数和(自身を含む): 34211893248

約数和(自身を除く): 13211570667

約数列:

[1, 3, 7, 17, 21, 51, 103, 119, 309, 357, 721, 1751, 2163, 5253, 12257, 36771, 571111, 1713333, 3997777, 9708887, 11993331, 29126661, 58824433, 67962209, 176473299, 203886627, 411771031, 1000015361, 1235313093, 3000046083, 7000107527, 21000322581]

約数ペア:

[(1, 21000322581), (3, 7000107527), (7, 3000046083), (17, 1235313093), (21, 1000015361), (51, 411771031), (103, 203886627), (119, 176473299), (309, 67962209), (357, 58824433), (721, 29126661), (1751, 11993331), (2163, 9708887), (5253, 3997777), (12257, 1713333), (36771, 571111)]