21217112

素因数分解:

$2^3\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1699}}^1$

素因数の和:1935

約数の個数: 32

約数和(自身を含む): 45696000

約数和(自身を除く): 24478888

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 223, 446, 892, 1561, 1699, 1784, 3122, 3398, 6244, 6796, 11893, 12488, 13592, 23786, 47572, 95144, 378877, 757754, 1515508, 2652139, 3031016, 5304278, 10608556, 21217112]

約数ペア:

[(1, 21217112), (2, 10608556), (4, 5304278), (7, 3031016), (8, 2652139), (14, 1515508), (28, 757754), (56, 378877), (223, 95144), (446, 47572), (892, 23786), (1561, 13592), (1699, 12488), (1784, 11893), (3122, 6796), (3398, 6244)]