21308562

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1237}}^1$

素因数の和:1288

約数の個数: 64

約数和(自身を含む): 53481600

約数和(自身を除く): 32173038

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 29, 33, 54, 58, 66, 87, 99, 174, 198, 261, 297, 319, 522, 594, 638, 783, 957, 1237, 1566, 1914, 2474, 2871, 3711, 5742, 7422, 8613, 11133, 13607, 17226, 22266, 27214, 33399, 35873, 40821, 66798, 71746, 81642, 107619, 122463, 215238, 244926, 322857, 367389, 394603, 645714, 734778, 789206, 968571, 1183809, 1937142, 2367618, 3551427, 7102854, 10654281, 21308562]

約数ペア:

[(1, 21308562), (2, 10654281), (3, 7102854), (6, 3551427), (9, 2367618), (11, 1937142), (18, 1183809), (22, 968571), (27, 789206), (29, 734778), (33, 645714), (54, 394603), (58, 367389), (66, 322857), (87, 244926), (99, 215238), (174, 122463), (198, 107619), (261, 81642), (297, 71746), (319, 66798), (522, 40821), (594, 35873), (638, 33399), (783, 27214), (957, 22266), (1237, 17226), (1566, 13607), (1914, 11133), (2474, 8613), (2871, 7422), (3711, 5742)]