21270438

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{18757}}^1$

素因数の和:18778

約数の個数: 40

約数和(自身を含む): 54473232

約数和(自身を除く): 33202794

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 378, 567, 1134, 18757, 37514, 56271, 112542, 131299, 168813, 262598, 337626, 393897, 506439, 787794, 1012878, 1181691, 1519317, 2363382, 3038634, 3545073, 7090146, 10635219, 21270438]

約数ペア:

[(1, 21270438), (2, 10635219), (3, 7090146), (6, 3545073), (7, 3038634), (9, 2363382), (14, 1519317), (18, 1181691), (21, 1012878), (27, 787794), (42, 506439), (54, 393897), (63, 337626), (81, 262598), (126, 168813), (162, 131299), (189, 112542), (378, 56271), (567, 37514), (1134, 18757)]