161777979

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2087}}^1$

素因数の和:2142

約数の個数: 48

約数和(自身を含む): 273611520

約数和(自身を除く): 111833541

約数列:

[1, 3, 9, 11, 27, 29, 33, 81, 87, 99, 243, 261, 297, 319, 783, 891, 957, 2087, 2349, 2673, 2871, 6261, 7047, 8613, 18783, 22957, 25839, 56349, 60523, 68871, 77517, 169047, 181569, 206613, 507141, 544707, 619839, 665753, 1634121, 1859517, 1997259, 4902363, 5578551, 5991777, 14707089, 17975331, 53925993, 161777979]

約数ペア:

[(1, 161777979), (3, 53925993), (9, 17975331), (11, 14707089), (27, 5991777), (29, 5578551), (33, 4902363), (81, 1997259), (87, 1859517), (99, 1634121), (243, 665753), (261, 619839), (297, 544707), (319, 507141), (783, 206613), (891, 181569), (957, 169047), (2087, 77517), (2349, 68871), (2673, 60523), (2871, 56349), (6261, 25839), (7047, 22957), (8613, 18783)]