21612402

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3989}}^1$

素因数の和:4047

約数の個数: 48

約数和(自身を含む): 54774720

約数和(自身を除く): 33162318

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 63, 86, 126, 129, 258, 301, 387, 602, 774, 903, 1806, 2709, 3989, 5418, 7978, 11967, 23934, 27923, 35901, 55846, 71802, 83769, 167538, 171527, 251307, 343054, 502614, 514581, 1029162, 1200689, 1543743, 2401378, 3087486, 3602067, 7204134, 10806201, 21612402]

約数ペア:

[(1, 21612402), (2, 10806201), (3, 7204134), (6, 3602067), (7, 3087486), (9, 2401378), (14, 1543743), (18, 1200689), (21, 1029162), (42, 514581), (43, 502614), (63, 343054), (86, 251307), (126, 171527), (129, 167538), (258, 83769), (301, 71802), (387, 55846), (602, 35901), (774, 27923), (903, 23934), (1806, 11967), (2709, 7978), (3989, 5418)]