81315124

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{821}}^1\times {\mathrm{2251}}^1$

素因数の和:3087

約数の個数: 24

約数和(自身を含む): 155496096

約数和(自身を除く): 74180972

約数列:

[1, 2, 4, 11, 22, 44, 821, 1642, 2251, 3284, 4502, 9004, 9031, 18062, 24761, 36124, 49522, 99044, 1848071, 3696142, 7392284, 20328781, 40657562, 81315124]

約数ペア:

[(1, 81315124), (2, 40657562), (4, 20328781), (11, 7392284), (22, 3696142), (44, 1848071), (821, 99044), (1642, 49522), (2251, 36124), (3284, 24761), (4502, 18062), (9004, 9031)]