111021921

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{72139}}^1$

素因数の和:72170

約数の個数: 20

約数和(自身を含む): 174578800

約数和(自身を除く): 63556879

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 72139, 216417, 649251, 1370641, 1947753, 4111923, 5843259, 12335769, 37007307, 111021921]

約数ペア:

[(1, 111021921), (3, 37007307), (9, 12335769), (19, 5843259), (27, 4111923), (57, 1947753), (81, 1370641), (171, 649251), (513, 216417), (1539, 72139)]