221400819

素因数分解:

$3^2\times {\mathrm{29}}^2\times {\mathrm{29251}}^1$

素因数の和:29315

約数の個数: 18

約数和(自身を含む): 331220396

約数和(自身を除く): 109819577

約数列:

[1, 3, 9, 29, 87, 261, 841, 2523, 7569, 29251, 87753, 263259, 848279, 2544837, 7634511, 24600091, 73800273, 221400819]

約数ペア:

[(1, 221400819), (3, 73800273), (9, 24600091), (29, 7634511), (87, 2544837), (261, 848279), (841, 263259), (2523, 87753), (7569, 29251)]