21981060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{122117}}^1$

素因数の和:122132

約数の個数: 36

約数和(自身を含む): 66676428

約数和(自身を除く): 44695368

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 122117, 244234, 366351, 488468, 610585, 732702, 1099053, 1221170, 1465404, 1831755, 2198106, 2442340, 3663510, 4396212, 5495265, 7327020, 10990530, 21981060]

約数ペア:

[(1, 21981060), (2, 10990530), (3, 7327020), (4, 5495265), (5, 4396212), (6, 3663510), (9, 2442340), (10, 2198106), (12, 1831755), (15, 1465404), (18, 1221170), (20, 1099053), (30, 732702), (36, 610585), (45, 488468), (60, 366351), (90, 244234), (180, 122117)]