21027776

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:298

約数の個数: 112

約数和(自身を含む): 55302912

約数和(自身を除く): 34275136

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 32, 34, 44, 56, 64, 68, 77, 88, 112, 119, 136, 154, 176, 187, 224, 238, 251, 272, 308, 352, 374, 448, 476, 502, 544, 616, 704, 748, 952, 1004, 1088, 1232, 1309, 1496, 1757, 1904, 2008, 2464, 2618, 2761, 2992, 3514, 3808, 4016, 4267, 4928, 5236, 5522, 5984, 7028, 7616, 8032, 8534, 10472, 11044, 11968, 14056, 16064, 17068, 19327, 20944, 22088, 28112, 29869, 34136, 38654, 41888, 44176, 46937, 56224, 59738, 68272, 77308, 83776, 88352, 93874, 112448, 119476, 136544, 154616, 176704, 187748, 238952, 273088, 309232, 328559, 375496, 477904, 618464, 657118, 750992, 955808, 1236928, 1314236, 1501984, 1911616, 2628472, 3003968, 5256944, 10513888, 21027776]

約数ペア:

[(1, 21027776), (2, 10513888), (4, 5256944), (7, 3003968), (8, 2628472), (11, 1911616), (14, 1501984), (16, 1314236), (17, 1236928), (22, 955808), (28, 750992), (32, 657118), (34, 618464), (44, 477904), (56, 375496), (64, 328559), (68, 309232), (77, 273088), (88, 238952), (112, 187748), (119, 176704), (136, 154616), (154, 136544), (176, 119476), (187, 112448), (224, 93874), (238, 88352), (251, 83776), (272, 77308), (308, 68272), (352, 59738), (374, 56224), (448, 46937), (476, 44176), (502, 41888), (544, 38654), (616, 34136), (704, 29869), (748, 28112), (952, 22088), (1004, 20944), (1088, 19327), (1232, 17068), (1309, 16064), (1496, 14056), (1757, 11968), (1904, 11044), (2008, 10472), (2464, 8534), (2618, 8032), (2761, 7616), (2992, 7028), (3514, 5984), (3808, 5522), (4016, 5236), (4267, 4928)]