18885177

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{271}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 29376000

約数和(自身を除く): 10490823

約数列:

[1, 3, 9, 27, 29, 87, 89, 261, 267, 271, 783, 801, 813, 2403, 2439, 2581, 7317, 7743, 7859, 23229, 23577, 24119, 69687, 70731, 72357, 212193, 217071, 651213, 699451, 2098353, 6295059, 18885177]

約数ペア:

[(1, 18885177), (3, 6295059), (9, 2098353), (27, 699451), (29, 651213), (87, 217071), (89, 212193), (261, 72357), (267, 70731), (271, 69687), (783, 24119), (801, 23577), (813, 23229), (2403, 7859), (2439, 7743), (2581, 7317)]