31631418

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:229

約数の個数: 128

約数和(自身を含む): 89187840

約数和(自身を除く): 57556422

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 41, 42, 54, 63, 78, 82, 91, 117, 123, 126, 157, 182, 189, 234, 246, 273, 287, 314, 351, 369, 378, 471, 533, 546, 574, 702, 738, 819, 861, 942, 1066, 1099, 1107, 1413, 1599, 1638, 1722, 2041, 2198, 2214, 2457, 2583, 2826, 3198, 3297, 3731, 4082, 4239, 4797, 4914, 5166, 6123, 6437, 6594, 7462, 7749, 8478, 9594, 9891, 11193, 12246, 12874, 14287, 14391, 15498, 18369, 19311, 19782, 22386, 28574, 28782, 29673, 33579, 36738, 38622, 42861, 45059, 55107, 57933, 59346, 67158, 83681, 85722, 90118, 100737, 110214, 115866, 128583, 135177, 167362, 173799, 201474, 251043, 257166, 270354, 347598, 385749, 405531, 502086, 585767, 753129, 771498, 811062, 1171534, 1216593, 1506258, 1757301, 2259387, 2433186, 3514602, 4518774, 5271903, 10543806, 15815709, 31631418]

約数ペア:

[(1, 31631418), (2, 15815709), (3, 10543806), (6, 5271903), (7, 4518774), (9, 3514602), (13, 2433186), (14, 2259387), (18, 1757301), (21, 1506258), (26, 1216593), (27, 1171534), (39, 811062), (41, 771498), (42, 753129), (54, 585767), (63, 502086), (78, 405531), (82, 385749), (91, 347598), (117, 270354), (123, 257166), (126, 251043), (157, 201474), (182, 173799), (189, 167362), (234, 135177), (246, 128583), (273, 115866), (287, 110214), (314, 100737), (351, 90118), (369, 85722), (378, 83681), (471, 67158), (533, 59346), (546, 57933), (574, 55107), (702, 45059), (738, 42861), (819, 38622), (861, 36738), (942, 33579), (1066, 29673), (1099, 28782), (1107, 28574), (1413, 22386), (1599, 19782), (1638, 19311), (1722, 18369), (2041, 15498), (2198, 14391), (2214, 14287), (2457, 12874), (2583, 12246), (2826, 11193), (3198, 9891), (3297, 9594), (3731, 8478), (4082, 7749), (4239, 7462), (4797, 6594), (4914, 6437), (5166, 6123)]