18905547

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 27855360

約数和(自身を除く): 8949813

約数列:

[1, 3, 17, 51, 59, 61, 103, 177, 183, 309, 1003, 1037, 1751, 3009, 3111, 3599, 5253, 6077, 6283, 10797, 18231, 18849, 61183, 103309, 106811, 183549, 309927, 320433, 370697, 1112091, 6301849, 18905547]

約数ペア:

[(1, 18905547), (3, 6301849), (17, 1112091), (51, 370697), (59, 320433), (61, 309927), (103, 183549), (177, 106811), (183, 103309), (309, 61183), (1003, 18849), (1037, 18231), (1751, 10797), (3009, 6283), (3111, 6077), (3599, 5253)]