138419991

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{547}}^1\times {\mathrm{907}}^1$

素因数の和:1491

約数の個数: 24

約数和(自身を含む): 206994944

約数和(自身を除く): 68574953

約数列:

[1, 3, 9, 31, 93, 279, 547, 907, 1641, 2721, 4923, 8163, 16957, 28117, 50871, 84351, 152613, 253053, 496129, 1488387, 4465161, 15379999, 46139997, 138419991]

約数ペア:

[(1, 138419991), (3, 46139997), (9, 15379999), (31, 4465161), (93, 1488387), (279, 496129), (547, 253053), (907, 152613), (1641, 84351), (2721, 50871), (4923, 28117), (8163, 16957)]