16816905

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 33606144

約数和(自身を除く): 16789239

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 197, 271, 315, 591, 813, 985, 1355, 1379, 1773, 1897, 2439, 2955, 4065, 4137, 5691, 6895, 8865, 9485, 12195, 12411, 17073, 20685, 28455, 53387, 62055, 85365, 160161, 266935, 373709, 480483, 800805, 1121127, 1868545, 2402415, 3363381, 5605635, 16816905]

約数ペア:

[(1, 16816905), (3, 5605635), (5, 3363381), (7, 2402415), (9, 1868545), (15, 1121127), (21, 800805), (35, 480483), (45, 373709), (63, 266935), (105, 160161), (197, 85365), (271, 62055), (315, 53387), (591, 28455), (813, 20685), (985, 17073), (1355, 12411), (1379, 12195), (1773, 9485), (1897, 8865), (2439, 6895), (2955, 5691), (4065, 4137)]