21687534

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1259}}^1$

素因数の和:1310

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 32744466

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, 1259, 1566, 1914, 2518, 2871, 3777, 5742, 7554, 8613, 11331, 13849, 17226, 22662, 27698, 33993, 36511, 41547, 67986, 73022, 83094, 109533, 124641, 219066, 249282, 328599, 373923, 401621, 657198, 747846, 803242, 985797, 1204863, 1971594, 2409726, 3614589, 7229178, 10843767, 21687534]

約数ペア:

[(1, 21687534), (2, 10843767), (3, 7229178), (6, 3614589), (9, 2409726), (11, 1971594), (18, 1204863), (22, 985797), (27, 803242), (29, 747846), (33, 657198), (54, 401621), (58, 373923), (66, 328599), (87, 249282), (99, 219066), (174, 124641), (198, 109533), (261, 83094), (297, 73022), (319, 67986), (522, 41547), (594, 36511), (638, 33993), (783, 27698), (957, 22662), (1259, 17226), (1566, 13849), (1914, 11331), (2518, 8613), (2871, 7554), (3777, 5742)]