18387387

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2557}}^1$

素因数の和:2627

約数の個数: 24

約数和(自身を含む): 28731456

約数和(自身を除く): 10344069

約数列:

[1, 3, 9, 17, 47, 51, 141, 153, 423, 799, 2397, 2557, 7191, 7671, 23013, 43469, 120179, 130407, 360537, 391221, 1081611, 2043043, 6129129, 18387387]

約数ペア:

[(1, 18387387), (3, 6129129), (9, 2043043), (17, 1081611), (47, 391221), (51, 360537), (141, 130407), (153, 120179), (423, 43469), (799, 23013), (2397, 7671), (2557, 7191)]