207988991

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1\times {\mathrm{3109}}^1$

素因数の和:3638

約数の個数: 16

約数和(自身を含む): 250790400

約数和(自身を除く): 42801409

約数列:

[1, 7, 19, 133, 503, 3109, 3521, 9557, 21763, 59071, 66899, 413497, 1563827, 10946789, 29712713, 207988991]

約数ペア:

[(1, 207988991), (7, 29712713), (19, 10946789), (133, 1563827), (503, 413497), (3109, 66899), (3521, 59071), (9557, 21763)]