21304536

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:185

約数の個数: 128

約数和(自身を含む): 63452160

約数和(自身を除く): 42147624

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 17, 22, 24, 33, 34, 44, 47, 51, 66, 68, 88, 94, 101, 102, 132, 136, 141, 187, 188, 202, 204, 264, 282, 303, 374, 376, 404, 408, 517, 561, 564, 606, 748, 799, 808, 1034, 1111, 1122, 1128, 1212, 1496, 1551, 1598, 1717, 2068, 2222, 2244, 2397, 2424, 3102, 3196, 3333, 3434, 4136, 4444, 4488, 4747, 4794, 5151, 6204, 6392, 6666, 6868, 8789, 8888, 9494, 9588, 10302, 12408, 13332, 13736, 14241, 17578, 18887, 18988, 19176, 20604, 26367, 26664, 28482, 35156, 37774, 37976, 41208, 52217, 52734, 56661, 56964, 70312, 75548, 80699, 104434, 105468, 113322, 113928, 151096, 156651, 161398, 208868, 210936, 226644, 242097, 313302, 322796, 417736, 453288, 484194, 626604, 645592, 887689, 968388, 1253208, 1775378, 1936776, 2663067, 3550756, 5326134, 7101512, 10652268, 21304536]

約数ペア:

[(1, 21304536), (2, 10652268), (3, 7101512), (4, 5326134), (6, 3550756), (8, 2663067), (11, 1936776), (12, 1775378), (17, 1253208), (22, 968388), (24, 887689), (33, 645592), (34, 626604), (44, 484194), (47, 453288), (51, 417736), (66, 322796), (68, 313302), (88, 242097), (94, 226644), (101, 210936), (102, 208868), (132, 161398), (136, 156651), (141, 151096), (187, 113928), (188, 113322), (202, 105468), (204, 104434), (264, 80699), (282, 75548), (303, 70312), (374, 56964), (376, 56661), (404, 52734), (408, 52217), (517, 41208), (561, 37976), (564, 37774), (606, 35156), (748, 28482), (799, 26664), (808, 26367), (1034, 20604), (1111, 19176), (1122, 18988), (1128, 18887), (1212, 17578), (1496, 14241), (1551, 13736), (1598, 13332), (1717, 12408), (2068, 10302), (2222, 9588), (2244, 9494), (2397, 8888), (2424, 8789), (3102, 6868), (3196, 6666), (3333, 6392), (3434, 6204), (4136, 5151), (4444, 4794), (4488, 4747)]