28181358

素因数分解:

$2^1\times 3^4\times {\mathrm{73}}^1\times {\mathrm{2383}}^1$

素因数の和:2470

約数の個数: 40

約数和(自身を含む): 64039008

約数和(自身を除く): 35857650

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 73, 81, 146, 162, 219, 438, 657, 1314, 1971, 2383, 3942, 4766, 5913, 7149, 11826, 14298, 21447, 42894, 64341, 128682, 173959, 193023, 347918, 386046, 521877, 1043754, 1565631, 3131262, 4696893, 9393786, 14090679, 28181358]

約数ペア:

[(1, 28181358), (2, 14090679), (3, 9393786), (6, 4696893), (9, 3131262), (18, 1565631), (27, 1043754), (54, 521877), (73, 386046), (81, 347918), (146, 193023), (162, 173959), (219, 128682), (438, 64341), (657, 42894), (1314, 21447), (1971, 14298), (2383, 11826), (3942, 7149), (4766, 5913)]