21916790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4289}}^1$

素因数の和:4376

約数の個数: 32

約数和(自身を含む): 45714240

約数和(自身を除く): 23797450

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 73, 146, 365, 511, 730, 1022, 2555, 4289, 5110, 8578, 21445, 30023, 42890, 60046, 150115, 300230, 313097, 626194, 1565485, 2191679, 3130970, 4383358, 10958395, 21916790]

約数ペア:

[(1, 21916790), (2, 10958395), (5, 4383358), (7, 3130970), (10, 2191679), (14, 1565485), (35, 626194), (70, 313097), (73, 300230), (146, 150115), (365, 60046), (511, 42890), (730, 30023), (1022, 21445), (2555, 8578), (4289, 5110)]