15721398

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:247

約数の個数: 128

約数和(自身を含む): 46080000

約数和(自身を除く): 30358602

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 19, 21, 22, 27, 33, 38, 42, 54, 57, 63, 66, 77, 99, 114, 126, 133, 154, 171, 189, 198, 199, 209, 231, 266, 297, 342, 378, 398, 399, 418, 462, 513, 594, 597, 627, 693, 798, 1026, 1194, 1197, 1254, 1386, 1393, 1463, 1791, 1881, 2079, 2189, 2394, 2786, 2926, 3582, 3591, 3762, 3781, 4158, 4179, 4378, 4389, 5373, 5643, 6567, 7182, 7562, 8358, 8778, 10746, 11286, 11343, 12537, 13134, 13167, 15323, 19701, 22686, 25074, 26334, 26467, 30646, 34029, 37611, 39402, 39501, 41591, 45969, 52934, 59103, 68058, 75222, 79002, 79401, 83182, 91938, 102087, 118206, 124773, 137907, 158802, 204174, 238203, 249546, 275814, 291137, 374319, 413721, 476406, 582274, 714609, 748638, 827442, 873411, 1122957, 1429218, 1746822, 2245914, 2620233, 5240466, 7860699, 15721398]

約数ペア:

[(1, 15721398), (2, 7860699), (3, 5240466), (6, 2620233), (7, 2245914), (9, 1746822), (11, 1429218), (14, 1122957), (18, 873411), (19, 827442), (21, 748638), (22, 714609), (27, 582274), (33, 476406), (38, 413721), (42, 374319), (54, 291137), (57, 275814), (63, 249546), (66, 238203), (77, 204174), (99, 158802), (114, 137907), (126, 124773), (133, 118206), (154, 102087), (171, 91938), (189, 83182), (198, 79401), (199, 79002), (209, 75222), (231, 68058), (266, 59103), (297, 52934), (342, 45969), (378, 41591), (398, 39501), (399, 39402), (418, 37611), (462, 34029), (513, 30646), (594, 26467), (597, 26334), (627, 25074), (693, 22686), (798, 19701), (1026, 15323), (1194, 13167), (1197, 13134), (1254, 12537), (1386, 11343), (1393, 11286), (1463, 10746), (1791, 8778), (1881, 8358), (2079, 7562), (2189, 7182), (2394, 6567), (2786, 5643), (2926, 5373), (3582, 4389), (3591, 4378), (3762, 4179), (3781, 4158)]