21143523

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{12791}}^1$

素因数の和:12842

約数の個数: 16

約数和(自身を含む): 30700800

約数和(自身を除く): 9557277

約数列:

[1, 3, 19, 29, 57, 87, 551, 1653, 12791, 38373, 243029, 370939, 729087, 1112817, 7047841, 21143523]

約数ペア:

[(1, 21143523), (3, 7047841), (19, 1112817), (29, 729087), (57, 370939), (87, 243029), (551, 38373), (1653, 12791)]