21094760

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2677}}^1$

素因数の和:2885

約数の個数: 32

約数和(自身を含む): 47721960

約数和(自身を除く): 26627200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 2677, 3940, 5354, 7880, 10708, 13385, 21416, 26770, 53540, 107080, 527369, 1054738, 2109476, 2636845, 4218952, 5273690, 10547380, 21094760]

約数ペア:

[(1, 21094760), (2, 10547380), (4, 5273690), (5, 4218952), (8, 2636845), (10, 2109476), (20, 1054738), (40, 527369), (197, 107080), (394, 53540), (788, 26770), (985, 21416), (1576, 13385), (1970, 10708), (2677, 7880), (3940, 5354)]