177730821

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 290304000

約数和(自身を除く): 112573179

約数列:

[1, 3, 9, 23, 27, 29, 69, 71, 87, 139, 207, 213, 261, 417, 621, 639, 667, 783, 1251, 1633, 1917, 2001, 2059, 3197, 3753, 4031, 4899, 6003, 6177, 9591, 9869, 12093, 14697, 18009, 18531, 28773, 29607, 36279, 44091, 47357, 55593, 86319, 88821, 92713, 108837, 142071, 226987, 266463, 278139, 286201, 426213, 680961, 834417, 858603, 1278639, 2042883, 2503251, 2575809, 6128649, 6582623, 7727427, 19747869, 59243607, 177730821]

約数ペア:

[(1, 177730821), (3, 59243607), (9, 19747869), (23, 7727427), (27, 6582623), (29, 6128649), (69, 2575809), (71, 2503251), (87, 2042883), (139, 1278639), (207, 858603), (213, 834417), (261, 680961), (417, 426213), (621, 286201), (639, 278139), (667, 266463), (783, 226987), (1251, 142071), (1633, 108837), (1917, 92713), (2001, 88821), (2059, 86319), (3197, 55593), (3753, 47357), (4031, 44091), (4899, 36279), (6003, 29607), (6177, 28773), (9591, 18531), (9869, 18009), (12093, 14697)]