2121957

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:119

約数の個数: 40

約数和(自身を含む): 3554496

約数和(自身を除く): 1432539

約数列:

[1, 3, 9, 17, 23, 27, 51, 67, 69, 81, 153, 201, 207, 391, 459, 603, 621, 1139, 1173, 1377, 1541, 1809, 1863, 3417, 3519, 4623, 5427, 10251, 10557, 13869, 26197, 30753, 31671, 41607, 78591, 92259, 124821, 235773, 707319, 2121957]

約数ペア:

[(1, 2121957), (3, 707319), (9, 235773), (17, 124821), (23, 92259), (27, 78591), (51, 41607), (67, 31671), (69, 30753), (81, 26197), (153, 13869), (201, 10557), (207, 10251), (391, 5427), (459, 4623), (603, 3519), (621, 3417), (1139, 1863), (1173, 1809), (1377, 1541)]