21980112

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1$

素因数の和:361

約数の個数: 160

約数和(自身を含む): 74757120

約数和(自身を除く): 52777008

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 19, 21, 22, 24, 28, 33, 38, 42, 44, 48, 56, 57, 66, 76, 77, 84, 88, 112, 114, 132, 133, 152, 154, 168, 176, 209, 228, 231, 264, 266, 304, 308, 313, 336, 399, 418, 456, 462, 528, 532, 616, 626, 627, 798, 836, 912, 924, 939, 1064, 1232, 1252, 1254, 1463, 1596, 1672, 1848, 1878, 2128, 2191, 2504, 2508, 2926, 3192, 3344, 3443, 3696, 3756, 4382, 4389, 5008, 5016, 5852, 5947, 6384, 6573, 6886, 7512, 8764, 8778, 10032, 10329, 11704, 11894, 13146, 13772, 15024, 17528, 17556, 17841, 20658, 23408, 23788, 24101, 26292, 27544, 35056, 35112, 35682, 41316, 41629, 47576, 48202, 52584, 55088, 65417, 70224, 71364, 72303, 82632, 83258, 95152, 96404, 105168, 124887, 130834, 142728, 144606, 165264, 166516, 192808, 196251, 249774, 261668, 285456, 289212, 333032, 385616, 392502, 457919, 499548, 523336, 578424, 666064, 785004, 915838, 999096, 1046672, 1156848, 1373757, 1570008, 1831676, 1998192, 2747514, 3140016, 3663352, 5495028, 7326704, 10990056, 21980112]

約数ペア:

[(1, 21980112), (2, 10990056), (3, 7326704), (4, 5495028), (6, 3663352), (7, 3140016), (8, 2747514), (11, 1998192), (12, 1831676), (14, 1570008), (16, 1373757), (19, 1156848), (21, 1046672), (22, 999096), (24, 915838), (28, 785004), (33, 666064), (38, 578424), (42, 523336), (44, 499548), (48, 457919), (56, 392502), (57, 385616), (66, 333032), (76, 289212), (77, 285456), (84, 261668), (88, 249774), (112, 196251), (114, 192808), (132, 166516), (133, 165264), (152, 144606), (154, 142728), (168, 130834), (176, 124887), (209, 105168), (228, 96404), (231, 95152), (264, 83258), (266, 82632), (304, 72303), (308, 71364), (313, 70224), (336, 65417), (399, 55088), (418, 52584), (456, 48202), (462, 47576), (528, 41629), (532, 41316), (616, 35682), (626, 35112), (627, 35056), (798, 27544), (836, 26292), (912, 24101), (924, 23788), (939, 23408), (1064, 20658), (1232, 17841), (1252, 17556), (1254, 17528), (1463, 15024), (1596, 13772), (1672, 13146), (1848, 11894), (1878, 11704), (2128, 10329), (2191, 10032), (2504, 8778), (2508, 8764), (2926, 7512), (3192, 6886), (3344, 6573), (3443, 6384), (3696, 5947), (3756, 5852), (4382, 5016), (4389, 5008)]