19706421

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{30271}}^1$

素因数の和:30312

約数の個数: 16

約数和(自身を含む): 30998528

約数和(自身を除く): 11292107

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 30271, 90813, 211897, 635691, 938401, 2815203, 6568807, 19706421]

約数ペア:

[(1, 19706421), (3, 6568807), (7, 2815203), (21, 938401), (31, 635691), (93, 211897), (217, 90813), (651, 30271)]