31087881

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:124

約数の個数: 80

約数和(自身を含む): 55617408

約数和(自身を除く): 24529527

約数列:

[1, 3, 9, 11, 23, 27, 33, 37, 41, 69, 81, 99, 111, 123, 207, 253, 297, 333, 369, 407, 451, 621, 759, 851, 891, 943, 999, 1107, 1221, 1353, 1517, 1863, 2277, 2553, 2829, 2997, 3321, 3663, 4059, 4551, 6831, 7659, 8487, 9361, 10373, 10989, 12177, 13653, 16687, 20493, 22977, 25461, 28083, 31119, 32967, 34891, 36531, 40959, 50061, 68931, 76383, 84249, 93357, 104673, 122877, 150183, 252747, 280071, 314019, 383801, 450549, 758241, 840213, 942057, 1151403, 1351647, 2826171, 3454209, 10362627, 31087881]

約数ペア:

[(1, 31087881), (3, 10362627), (9, 3454209), (11, 2826171), (23, 1351647), (27, 1151403), (33, 942057), (37, 840213), (41, 758241), (69, 450549), (81, 383801), (99, 314019), (111, 280071), (123, 252747), (207, 150183), (253, 122877), (297, 104673), (333, 93357), (369, 84249), (407, 76383), (451, 68931), (621, 50061), (759, 40959), (851, 36531), (891, 34891), (943, 32967), (999, 31119), (1107, 28083), (1221, 25461), (1353, 22977), (1517, 20493), (1863, 16687), (2277, 13653), (2553, 12177), (2829, 10989), (2997, 10373), (3321, 9361), (3663, 8487), (4059, 7659), (4551, 6831)]