19379979

素因数分解:

$3^5\times {\mathrm{173}}^1\times {\mathrm{461}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 29261232

約数和(自身を除く): 9881253

約数列:

[1, 3, 9, 27, 81, 173, 243, 461, 519, 1383, 1557, 4149, 4671, 12447, 14013, 37341, 42039, 79753, 112023, 239259, 717777, 2153331, 6459993, 19379979]

約数ペア:

[(1, 19379979), (3, 6459993), (9, 2153331), (27, 717777), (81, 239259), (173, 112023), (243, 79753), (461, 42039), (519, 37341), (1383, 14013), (1557, 12447), (4149, 4671)]