18719197

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1\times {\mathrm{239}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 21934080

約数和(自身を除く): 3214883

約数列:

[1, 7, 67, 167, 239, 469, 1169, 1673, 11189, 16013, 39913, 78323, 112091, 279391, 2674171, 18719197]

約数ペア:

[(1, 18719197), (7, 2674171), (67, 279391), (167, 112091), (239, 78323), (469, 39913), (1169, 16013), (1673, 11189)]