163689921

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{2221}}^1$

素因数の和:2677

約数の個数: 24

約数和(自身を含む): 249575040

約数和(自身を除く): 85885119

約数列:

[1, 3, 9, 19, 57, 171, 431, 1293, 2221, 3879, 6663, 8189, 19989, 24567, 42199, 73701, 126597, 379791, 957251, 2871753, 8615259, 18187769, 54563307, 163689921]

約数ペア:

[(1, 163689921), (3, 54563307), (9, 18187769), (19, 8615259), (57, 2871753), (171, 957251), (431, 379791), (1293, 126597), (2221, 73701), (3879, 42199), (6663, 24567), (8189, 19989)]