217397871

素因数分解:

$3^3\times {\mathrm{151}}^1\times {\mathrm{53323}}^1$

素因数の和:53483

約数の個数: 16

約数和(自身を含む): 324209920

約数和(自身を除く): 106812049

約数列:

[1, 3, 9, 27, 151, 453, 1359, 4077, 53323, 159969, 479907, 1439721, 8051773, 24155319, 72465957, 217397871]

約数ペア:

[(1, 217397871), (3, 72465957), (9, 24155319), (27, 8051773), (151, 1439721), (453, 479907), (1359, 159969), (4077, 53323)]