21038367

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1901}}^1$

素因数の和:1959

約数の個数: 32

約数和(自身を含む): 35057664

約数和(自身を除く): 14019297

約数列:

[1, 3, 7, 17, 21, 31, 51, 93, 119, 217, 357, 527, 651, 1581, 1901, 3689, 5703, 11067, 13307, 32317, 39921, 58931, 96951, 176793, 226219, 412517, 678657, 1001827, 1237551, 3005481, 7012789, 21038367]

約数ペア:

[(1, 21038367), (3, 7012789), (7, 3005481), (17, 1237551), (21, 1001827), (31, 678657), (51, 412517), (93, 226219), (119, 176793), (217, 96951), (357, 58931), (527, 39921), (651, 32317), (1581, 13307), (1901, 11067), (3689, 5703)]