21357168

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3739}}^1$

素因数の和:3774

約数の個数: 80

約数和(自身を含む): 66781440

約数和(自身を除く): 45424272

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 34, 42, 48, 51, 56, 68, 84, 102, 112, 119, 136, 168, 204, 238, 272, 336, 357, 408, 476, 714, 816, 952, 1428, 1904, 2856, 3739, 5712, 7478, 11217, 14956, 22434, 26173, 29912, 44868, 52346, 59824, 63563, 78519, 89736, 104692, 127126, 157038, 179472, 190689, 209384, 254252, 314076, 381378, 418768, 444941, 508504, 628152, 762756, 889882, 1017008, 1256304, 1334823, 1525512, 1779764, 2669646, 3051024, 3559528, 5339292, 7119056, 10678584, 21357168]

約数ペア:

[(1, 21357168), (2, 10678584), (3, 7119056), (4, 5339292), (6, 3559528), (7, 3051024), (8, 2669646), (12, 1779764), (14, 1525512), (16, 1334823), (17, 1256304), (21, 1017008), (24, 889882), (28, 762756), (34, 628152), (42, 508504), (48, 444941), (51, 418768), (56, 381378), (68, 314076), (84, 254252), (102, 209384), (112, 190689), (119, 179472), (136, 157038), (168, 127126), (204, 104692), (238, 89736), (272, 78519), (336, 63563), (357, 59824), (408, 52346), (476, 44868), (714, 29912), (816, 26173), (952, 22434), (1428, 14956), (1904, 11217), (2856, 7478), (3739, 5712)]