28921284

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:234

約数の個数: 144

約数和(自身を含む): 91099008

約数和(自身を除く): 62177724

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 43, 51, 63, 68, 84, 86, 102, 119, 126, 129, 153, 157, 172, 204, 238, 252, 258, 301, 306, 314, 357, 387, 471, 476, 516, 602, 612, 628, 714, 731, 774, 903, 942, 1071, 1099, 1204, 1413, 1428, 1462, 1548, 1806, 1884, 2142, 2193, 2198, 2669, 2709, 2826, 2924, 3297, 3612, 4284, 4386, 4396, 5117, 5338, 5418, 5652, 6579, 6594, 6751, 8007, 8772, 9891, 10234, 10676, 10836, 13158, 13188, 13502, 15351, 16014, 18683, 19782, 20253, 20468, 24021, 26316, 27004, 30702, 32028, 37366, 39564, 40506, 46053, 47257, 48042, 56049, 60759, 61404, 74732, 81012, 92106, 94514, 96084, 112098, 114767, 121518, 141771, 168147, 184212, 189028, 224196, 229534, 243036, 283542, 336294, 344301, 425313, 459068, 567084, 672588, 688602, 803369, 850626, 1032903, 1377204, 1606738, 1701252, 2065806, 2410107, 3213476, 4131612, 4820214, 7230321, 9640428, 14460642, 28921284]

約数ペア:

[(1, 28921284), (2, 14460642), (3, 9640428), (4, 7230321), (6, 4820214), (7, 4131612), (9, 3213476), (12, 2410107), (14, 2065806), (17, 1701252), (18, 1606738), (21, 1377204), (28, 1032903), (34, 850626), (36, 803369), (42, 688602), (43, 672588), (51, 567084), (63, 459068), (68, 425313), (84, 344301), (86, 336294), (102, 283542), (119, 243036), (126, 229534), (129, 224196), (153, 189028), (157, 184212), (172, 168147), (204, 141771), (238, 121518), (252, 114767), (258, 112098), (301, 96084), (306, 94514), (314, 92106), (357, 81012), (387, 74732), (471, 61404), (476, 60759), (516, 56049), (602, 48042), (612, 47257), (628, 46053), (714, 40506), (731, 39564), (774, 37366), (903, 32028), (942, 30702), (1071, 27004), (1099, 26316), (1204, 24021), (1413, 20468), (1428, 20253), (1462, 19782), (1548, 18683), (1806, 16014), (1884, 15351), (2142, 13502), (2193, 13188), (2198, 13158), (2669, 10836), (2709, 10676), (2826, 10234), (2924, 9891), (3297, 8772), (3612, 8007), (4284, 6751), (4386, 6594), (4396, 6579), (5117, 5652), (5338, 5418)]