218635281

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{87071}}^1$

素因数の和:87114

約数の個数: 20

約数和(自身を含む): 337142784

約数和(自身を除く): 118507503

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 87071, 261213, 783639, 2350917, 2699201, 7052751, 8097603, 24292809, 72878427, 218635281]

約数ペア:

[(1, 218635281), (3, 72878427), (9, 24292809), (27, 8097603), (31, 7052751), (81, 2699201), (93, 2350917), (279, 783639), (837, 261213), (2511, 87071)]