81219838

素因数分解:

$2^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{18301}}^1$

素因数の和:18627

約数の個数: 16

約数和(自身を含む): 139680864

約数和(自身を除く): 58461026

約数列:

[1, 2, 7, 14, 317, 634, 2219, 4438, 18301, 36602, 128107, 256214, 5801417, 11602834, 40609919, 81219838]

約数ペア:

[(1, 81219838), (2, 40609919), (7, 11602834), (14, 5801417), (317, 256214), (634, 128107), (2219, 36602), (4438, 18301)]