9978388

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{20963}}^1$

素因数の和:20991

約数の個数: 24

約数和(自身を含む): 21131712

約数和(自身を除く): 11153324

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 20963, 41926, 83852, 146741, 293482, 356371, 586964, 712742, 1425484, 2494597, 4989194, 9978388]

約数ペア:

[(1, 9978388), (2, 4989194), (4, 2494597), (7, 1425484), (14, 712742), (17, 586964), (28, 356371), (34, 293482), (68, 146741), (119, 83852), (238, 41926), (476, 20963)]