21027006

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:431

約数の個数: 128

約数和(自身を含む): 62899200

約数和(自身を除く): 41872194

約数列:

[1, 2, 3, 6, 7, 9, 11, 13, 14, 18, 21, 22, 26, 27, 33, 39, 42, 54, 63, 66, 77, 78, 91, 99, 117, 126, 143, 154, 182, 189, 198, 231, 234, 273, 286, 297, 351, 378, 389, 429, 462, 546, 594, 693, 702, 778, 819, 858, 1001, 1167, 1287, 1386, 1638, 2002, 2079, 2334, 2457, 2574, 2723, 3003, 3501, 3861, 4158, 4279, 4914, 5057, 5446, 6006, 7002, 7722, 8169, 8558, 9009, 10114, 10503, 12837, 15171, 16338, 18018, 21006, 24507, 25674, 27027, 29953, 30342, 35399, 38511, 45513, 49014, 54054, 55627, 59906, 70798, 73521, 77022, 89859, 91026, 106197, 111254, 115533, 136539, 147042, 166881, 179718, 212394, 231066, 269577, 273078, 318591, 333762, 389389, 500643, 539154, 637182, 778778, 808731, 955773, 1001286, 1168167, 1501929, 1617462, 1911546, 2336334, 3003858, 3504501, 7009002, 10513503, 21027006]

約数ペア:

[(1, 21027006), (2, 10513503), (3, 7009002), (6, 3504501), (7, 3003858), (9, 2336334), (11, 1911546), (13, 1617462), (14, 1501929), (18, 1168167), (21, 1001286), (22, 955773), (26, 808731), (27, 778778), (33, 637182), (39, 539154), (42, 500643), (54, 389389), (63, 333762), (66, 318591), (77, 273078), (78, 269577), (91, 231066), (99, 212394), (117, 179718), (126, 166881), (143, 147042), (154, 136539), (182, 115533), (189, 111254), (198, 106197), (231, 91026), (234, 89859), (273, 77022), (286, 73521), (297, 70798), (351, 59906), (378, 55627), (389, 54054), (429, 49014), (462, 45513), (546, 38511), (594, 35399), (693, 30342), (702, 29953), (778, 27027), (819, 25674), (858, 24507), (1001, 21006), (1167, 18018), (1287, 16338), (1386, 15171), (1638, 12837), (2002, 10503), (2079, 10114), (2334, 9009), (2457, 8558), (2574, 8169), (2723, 7722), (3003, 7002), (3501, 6006), (3861, 5446), (4158, 5057), (4279, 4914)]