28641357

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:267

約数の個数: 40

約数和(自身を含む): 45084600

約数和(自身を除く): 16443243

約数列:

[1, 3, 9, 27, 29, 81, 87, 89, 137, 261, 267, 411, 783, 801, 1233, 2349, 2403, 2581, 3699, 3973, 7209, 7743, 11097, 11919, 12193, 23229, 35757, 36579, 69687, 107271, 109737, 209061, 321813, 329211, 353597, 987633, 1060791, 3182373, 9547119, 28641357]

約数ペア:

[(1, 28641357), (3, 9547119), (9, 3182373), (27, 1060791), (29, 987633), (81, 353597), (87, 329211), (89, 321813), (137, 209061), (261, 109737), (267, 107271), (411, 69687), (783, 36579), (801, 35757), (1233, 23229), (2349, 12193), (2403, 11919), (2581, 11097), (3699, 7743), (3973, 7209)]