21747012

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:285

約数の個数: 96

約数和(自身を含む): 62431488

約数和(自身を除く): 40684476

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 97, 102, 119, 157, 194, 204, 238, 291, 314, 357, 388, 471, 476, 582, 628, 679, 714, 942, 1099, 1164, 1358, 1428, 1649, 1884, 2037, 2198, 2669, 2716, 3297, 3298, 4074, 4396, 4947, 5338, 6594, 6596, 8007, 8148, 9894, 10676, 11543, 13188, 15229, 16014, 18683, 19788, 23086, 30458, 32028, 34629, 37366, 45687, 46172, 56049, 60916, 69258, 74732, 91374, 106603, 112098, 138516, 182748, 213206, 224196, 258893, 319809, 426412, 517786, 639618, 776679, 1035572, 1279236, 1553358, 1812251, 3106716, 3624502, 5436753, 7249004, 10873506, 21747012]

約数ペア:

[(1, 21747012), (2, 10873506), (3, 7249004), (4, 5436753), (6, 3624502), (7, 3106716), (12, 1812251), (14, 1553358), (17, 1279236), (21, 1035572), (28, 776679), (34, 639618), (42, 517786), (51, 426412), (68, 319809), (84, 258893), (97, 224196), (102, 213206), (119, 182748), (157, 138516), (194, 112098), (204, 106603), (238, 91374), (291, 74732), (314, 69258), (357, 60916), (388, 56049), (471, 46172), (476, 45687), (582, 37366), (628, 34629), (679, 32028), (714, 30458), (942, 23086), (1099, 19788), (1164, 18683), (1358, 16014), (1428, 15229), (1649, 13188), (1884, 11543), (2037, 10676), (2198, 9894), (2669, 8148), (2716, 8007), (3297, 6596), (3298, 6594), (4074, 5338), (4396, 4947)]