278312193

素因数分解:

$3^4\times {\mathrm{173}}^1\times {\mathrm{19861}}^1$

素因数の和:20046

約数の個数: 20

約数和(自身を含む): 418174548

約数和(自身を除く): 139862355

約数列:

[1, 3, 9, 27, 81, 173, 519, 1557, 4671, 14013, 19861, 59583, 178749, 536247, 1608741, 3435953, 10307859, 30923577, 92770731, 278312193]

約数ペア:

[(1, 278312193), (3, 92770731), (9, 30923577), (27, 10307859), (81, 3435953), (173, 1608741), (519, 536247), (1557, 178749), (4671, 59583), (14013, 19861)]