216018819

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{86029}}^1$

素因数の和:86072

約数の個数: 20

約数和(自身を含む): 333108160

約数和(自身を除く): 117089341

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 86029, 258087, 774261, 2322783, 2666899, 6968349, 8000697, 24002091, 72006273, 216018819]

約数ペア:

[(1, 216018819), (3, 72006273), (9, 24002091), (27, 8000697), (31, 6968349), (81, 2666899), (93, 2322783), (279, 774261), (837, 258087), (2511, 86029)]