21264460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2267}}^1$

素因数の和:2350

約数の個数: 48

約数和(自身を含む): 51819264

約数和(自身を除く): 30554804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2267, 2345, 4534, 4690, 9068, 9380, 11335, 15869, 22670, 31738, 45340, 63476, 79345, 151889, 158690, 303778, 317380, 607556, 759445, 1063223, 1518890, 2126446, 3037780, 4252892, 5316115, 10632230, 21264460]

約数ペア:

[(1, 21264460), (2, 10632230), (4, 5316115), (5, 4252892), (7, 3037780), (10, 2126446), (14, 1518890), (20, 1063223), (28, 759445), (35, 607556), (67, 317380), (70, 303778), (134, 158690), (140, 151889), (268, 79345), (335, 63476), (469, 45340), (670, 31738), (938, 22670), (1340, 15869), (1876, 11335), (2267, 9380), (2345, 9068), (4534, 4690)]