2947887

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:180

約数の個数: 32

約数和(自身を含む): 4700160

約数和(自身を除く): 1752273

約数列:

[1, 3, 9, 23, 27, 47, 69, 101, 141, 207, 303, 423, 621, 909, 1081, 1269, 2323, 2727, 3243, 4747, 6969, 9729, 14241, 20907, 29187, 42723, 62721, 109181, 128169, 327543, 982629, 2947887]

約数ペア:

[(1, 2947887), (3, 982629), (9, 327543), (23, 128169), (27, 109181), (47, 62721), (69, 42723), (101, 29187), (141, 20907), (207, 14241), (303, 9729), (423, 6969), (621, 4747), (909, 3243), (1081, 2727), (1269, 2323)]