20918296

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:153

約数の個数: 96

約数和(自身を含む): 50109840

約数和(自身を除く): 29191544

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 43, 49, 56, 68, 73, 86, 98, 119, 136, 146, 172, 196, 238, 292, 301, 344, 392, 476, 511, 584, 602, 731, 833, 952, 1022, 1204, 1241, 1462, 1666, 2044, 2107, 2408, 2482, 2924, 3139, 3332, 3577, 4088, 4214, 4964, 5117, 5848, 6278, 6664, 7154, 8428, 8687, 9928, 10234, 12556, 14308, 16856, 17374, 20468, 21973, 25112, 28616, 34748, 35819, 40936, 43946, 53363, 60809, 69496, 71638, 87892, 106726, 121618, 143276, 153811, 175784, 213452, 243236, 286552, 307622, 373541, 426904, 486472, 615244, 747082, 1230488, 1494164, 2614787, 2988328, 5229574, 10459148, 20918296]

約数ペア:

[(1, 20918296), (2, 10459148), (4, 5229574), (7, 2988328), (8, 2614787), (14, 1494164), (17, 1230488), (28, 747082), (34, 615244), (43, 486472), (49, 426904), (56, 373541), (68, 307622), (73, 286552), (86, 243236), (98, 213452), (119, 175784), (136, 153811), (146, 143276), (172, 121618), (196, 106726), (238, 87892), (292, 71638), (301, 69496), (344, 60809), (392, 53363), (476, 43946), (511, 40936), (584, 35819), (602, 34748), (731, 28616), (833, 25112), (952, 21973), (1022, 20468), (1204, 17374), (1241, 16856), (1462, 14308), (1666, 12556), (2044, 10234), (2107, 9928), (2408, 8687), (2482, 8428), (2924, 7154), (3139, 6664), (3332, 6278), (3577, 5848), (4088, 5117), (4214, 4964)]