28506807

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{619}}^1$

素因数の和:692

約数の個数: 48

約数和(自身を含む): 51068160

約数和(自身を除く): 22561353

約数列:

[1, 3, 7, 9, 17, 21, 43, 51, 63, 119, 129, 153, 301, 357, 387, 619, 731, 903, 1071, 1857, 2193, 2709, 4333, 5117, 5571, 6579, 10523, 12999, 15351, 26617, 31569, 38997, 46053, 73661, 79851, 94707, 186319, 220983, 239553, 452489, 558957, 662949, 1357467, 1676871, 3167423, 4072401, 9502269, 28506807]

約数ペア:

[(1, 28506807), (3, 9502269), (7, 4072401), (9, 3167423), (17, 1676871), (21, 1357467), (43, 662949), (51, 558957), (63, 452489), (119, 239553), (129, 220983), (153, 186319), (301, 94707), (357, 79851), (387, 73661), (619, 46053), (731, 38997), (903, 31569), (1071, 26617), (1857, 15351), (2193, 12999), (2709, 10523), (4333, 6579), (5117, 5571)]