17912421

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:247

約数の個数: 40

約数和(自身を含む): 28691520

約数和(自身を除く): 10779099

約数列:

[1, 3, 9, 19, 27, 57, 81, 103, 113, 171, 309, 339, 513, 927, 1017, 1539, 1957, 2147, 2781, 3051, 5871, 6441, 8343, 9153, 11639, 17613, 19323, 34917, 52839, 57969, 104751, 158517, 173907, 221141, 314253, 663423, 942759, 1990269, 5970807, 17912421]

約数ペア:

[(1, 17912421), (3, 5970807), (9, 1990269), (19, 942759), (27, 663423), (57, 314253), (81, 221141), (103, 173907), (113, 158517), (171, 104751), (309, 57969), (339, 52839), (513, 34917), (927, 19323), (1017, 17613), (1539, 11639), (1957, 9153), (2147, 8343), (2781, 6441), (3051, 5871)]