31391514

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:137

約数の個数: 144

約数和(自身を含む): 89631360

約数和(自身を除く): 58239846

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 29, 33, 42, 58, 63, 66, 71, 77, 87, 99, 121, 126, 142, 154, 174, 198, 203, 213, 231, 242, 261, 319, 363, 406, 426, 462, 497, 522, 609, 638, 639, 693, 726, 781, 847, 957, 994, 1089, 1218, 1278, 1386, 1491, 1562, 1694, 1827, 1914, 2059, 2178, 2233, 2343, 2541, 2871, 2982, 3509, 3654, 4118, 4466, 4473, 4686, 5082, 5467, 5742, 6177, 6699, 7018, 7029, 7623, 8591, 8946, 10527, 10934, 12354, 13398, 14058, 14413, 15246, 16401, 17182, 18531, 20097, 21054, 22649, 24563, 25773, 28826, 31581, 32802, 37062, 40194, 43239, 45298, 49126, 49203, 51546, 60137, 63162, 67947, 73689, 77319, 86478, 98406, 120274, 129717, 135894, 147378, 154638, 158543, 180411, 203841, 221067, 249139, 259434, 317086, 360822, 407682, 442134, 475629, 498278, 541233, 747417, 951258, 1082466, 1426887, 1494834, 1743973, 2242251, 2853774, 3487946, 4484502, 5231919, 10463838, 15695757, 31391514]

約数ペア:

[(1, 31391514), (2, 15695757), (3, 10463838), (6, 5231919), (7, 4484502), (9, 3487946), (11, 2853774), (14, 2242251), (18, 1743973), (21, 1494834), (22, 1426887), (29, 1082466), (33, 951258), (42, 747417), (58, 541233), (63, 498278), (66, 475629), (71, 442134), (77, 407682), (87, 360822), (99, 317086), (121, 259434), (126, 249139), (142, 221067), (154, 203841), (174, 180411), (198, 158543), (203, 154638), (213, 147378), (231, 135894), (242, 129717), (261, 120274), (319, 98406), (363, 86478), (406, 77319), (426, 73689), (462, 67947), (497, 63162), (522, 60137), (609, 51546), (638, 49203), (639, 49126), (693, 45298), (726, 43239), (781, 40194), (847, 37062), (957, 32802), (994, 31581), (1089, 28826), (1218, 25773), (1278, 24563), (1386, 22649), (1491, 21054), (1562, 20097), (1694, 18531), (1827, 17182), (1914, 16401), (2059, 15246), (2178, 14413), (2233, 14058), (2343, 13398), (2541, 12354), (2871, 10934), (2982, 10527), (3509, 8946), (3654, 8591), (4118, 7623), (4466, 7029), (4473, 7018), (4686, 6699), (5082, 6177), (5467, 5742)]