31511268

素因数分解:

$2^2\times 3^5\times {\mathrm{17}}^1\times {\mathrm{1907}}^1$

素因数の和:1943

約数の個数: 72

約数和(自身を含む): 87508512

約数和(自身を除く): 55997244

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 81, 102, 108, 153, 162, 204, 243, 306, 324, 459, 486, 612, 918, 972, 1377, 1836, 1907, 2754, 3814, 4131, 5508, 5721, 7628, 8262, 11442, 16524, 17163, 22884, 32419, 34326, 51489, 64838, 68652, 97257, 102978, 129676, 154467, 194514, 205956, 291771, 308934, 389028, 463401, 583542, 617868, 875313, 926802, 1167084, 1750626, 1853604, 2625939, 3501252, 5251878, 7877817, 10503756, 15755634, 31511268]

約数ペア:

[(1, 31511268), (2, 15755634), (3, 10503756), (4, 7877817), (6, 5251878), (9, 3501252), (12, 2625939), (17, 1853604), (18, 1750626), (27, 1167084), (34, 926802), (36, 875313), (51, 617868), (54, 583542), (68, 463401), (81, 389028), (102, 308934), (108, 291771), (153, 205956), (162, 194514), (204, 154467), (243, 129676), (306, 102978), (324, 97257), (459, 68652), (486, 64838), (612, 51489), (918, 34326), (972, 32419), (1377, 22884), (1836, 17163), (1907, 16524), (2754, 11442), (3814, 8262), (4131, 7628), (5508, 5721)]