19946391

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{331}}^1\times {\mathrm{379}}^1$

素因数の和:766

約数の個数: 16

約数和(自身を含む): 27250560

約数和(自身を除く): 7304169

約数列:

[1, 3, 53, 159, 331, 379, 993, 1137, 17543, 20087, 52629, 60261, 125449, 376347, 6648797, 19946391]

約数ペア:

[(1, 19946391), (3, 6648797), (53, 376347), (159, 125449), (331, 60261), (379, 52629), (993, 20087), (1137, 17543)]