21382760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{76367}}^1$

素因数の和:76385

約数の個数: 32

約数和(自身を含む): 54984960

約数和(自身を除く): 33602200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 76367, 152734, 305468, 381835, 534569, 610936, 763670, 1069138, 1527340, 2138276, 2672845, 3054680, 4276552, 5345690, 10691380, 21382760]

約数ペア:

[(1, 21382760), (2, 10691380), (4, 5345690), (5, 4276552), (7, 3054680), (8, 2672845), (10, 2138276), (14, 1527340), (20, 1069138), (28, 763670), (35, 610936), (40, 534569), (56, 381835), (70, 305468), (140, 152734), (280, 76367)]