31749867

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:145

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 21472533

約数列:

[1, 3, 9, 23, 27, 29, 41, 43, 69, 87, 123, 129, 207, 261, 369, 387, 621, 667, 783, 943, 989, 1107, 1161, 1189, 1247, 1763, 2001, 2829, 2967, 3567, 3741, 5289, 6003, 8487, 8901, 10701, 11223, 15867, 18009, 25461, 26703, 27347, 28681, 32103, 33669, 40549, 47601, 51127, 82041, 86043, 121647, 153381, 246123, 258129, 364941, 460143, 738369, 774387, 1094823, 1175921, 1380429, 3527763, 10583289, 31749867]

約数ペア:

[(1, 31749867), (3, 10583289), (9, 3527763), (23, 1380429), (27, 1175921), (29, 1094823), (41, 774387), (43, 738369), (69, 460143), (87, 364941), (123, 258129), (129, 246123), (207, 153381), (261, 121647), (369, 86043), (387, 82041), (621, 51127), (667, 47601), (783, 40549), (943, 33669), (989, 32103), (1107, 28681), (1161, 27347), (1189, 26703), (1247, 25461), (1763, 18009), (2001, 15867), (2829, 11223), (2967, 10701), (3567, 8901), (3741, 8487), (5289, 6003)]