28687967

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19609}}^1$

素因数の和:19646

約数の個数: 16

約数和(自身を含む): 37651200

約数和(自身を除く): 8963233

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 19609, 137263, 215699, 372571, 1509893, 2607997, 4098281, 28687967]

約数ペア:

[(1, 28687967), (7, 4098281), (11, 2607997), (19, 1509893), (77, 372571), (133, 215699), (209, 137263), (1463, 19609)]