15661947

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2309}}^1$

素因数の和:2355

約数の個数: 32

約数和(自身を含む): 26611200

約数和(自身を除く): 10949253

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 399, 969, 2261, 2309, 6783, 6927, 16163, 39253, 43871, 48489, 117759, 131613, 274771, 307097, 745807, 824313, 921291, 2237421, 5220649, 15661947]

約数ペア:

[(1, 15661947), (3, 5220649), (7, 2237421), (17, 921291), (19, 824313), (21, 745807), (51, 307097), (57, 274771), (119, 131613), (133, 117759), (323, 48489), (357, 43871), (399, 39253), (969, 16163), (2261, 6927), (2309, 6783)]