21755335

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20051}}^1$

素因数の和:20094

約数の個数: 16

約数和(自身を含む): 30799872

約数和(自身を除く): 9044537

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 20051, 100255, 140357, 621581, 701785, 3107905, 4351067, 21755335]

約数ペア:

[(1, 21755335), (5, 4351067), (7, 3107905), (31, 701785), (35, 621581), (155, 140357), (217, 100255), (1085, 20051)]