28007742

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{269}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 66977280

約数和(自身を除く): 38969538

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 67, 74, 111, 134, 201, 222, 259, 269, 402, 469, 518, 538, 777, 807, 938, 1407, 1554, 1614, 1883, 2479, 2814, 3766, 4958, 5649, 7437, 9953, 11298, 14874, 17353, 18023, 19906, 29859, 34706, 36046, 52059, 54069, 59718, 69671, 104118, 108138, 126161, 139342, 209013, 252322, 378483, 418026, 666851, 756966, 1333702, 2000553, 4001106, 4667957, 9335914, 14003871, 28007742]

約数ペア:

[(1, 28007742), (2, 14003871), (3, 9335914), (6, 4667957), (7, 4001106), (14, 2000553), (21, 1333702), (37, 756966), (42, 666851), (67, 418026), (74, 378483), (111, 252322), (134, 209013), (201, 139342), (222, 126161), (259, 108138), (269, 104118), (402, 69671), (469, 59718), (518, 54069), (538, 52059), (777, 36046), (807, 34706), (938, 29859), (1407, 19906), (1554, 18023), (1614, 17353), (1883, 14874), (2479, 11298), (2814, 9953), (3766, 7437), (4958, 5649)]