21890330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28429}}^1$

素因数の和:28454

約数の個数: 32

約数和(自身を含む): 49127040

約数和(自身を除く): 27236710

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 28429, 56858, 142145, 199003, 284290, 312719, 398006, 625438, 995015, 1563595, 1990030, 2189033, 3127190, 4378066, 10945165, 21890330]

約数ペア:

[(1, 21890330), (2, 10945165), (5, 4378066), (7, 3127190), (10, 2189033), (11, 1990030), (14, 1563595), (22, 995015), (35, 625438), (55, 398006), (70, 312719), (77, 284290), (110, 199003), (154, 142145), (385, 56858), (770, 28429)]