21296360

素因数分解:

$2^3\times 5^1\times {\mathrm{587}}^1\times {\mathrm{907}}^1$

素因数の和:1505

約数の個数: 32

約数和(自身を含む): 48051360

約数和(自身を除く): 26755000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 587, 907, 1174, 1814, 2348, 2935, 3628, 4535, 4696, 5870, 7256, 9070, 11740, 18140, 23480, 36280, 532409, 1064818, 2129636, 2662045, 4259272, 5324090, 10648180, 21296360]

約数ペア:

[(1, 21296360), (2, 10648180), (4, 5324090), (5, 4259272), (8, 2662045), (10, 2129636), (20, 1064818), (40, 532409), (587, 36280), (907, 23480), (1174, 18140), (1814, 11740), (2348, 9070), (2935, 7256), (3628, 5870), (4535, 4696)]