21209733

素因数分解:

$3^2\times {\mathrm{59}}^2\times {\mathrm{677}}^1$

素因数の和:801

約数の個数: 18

約数和(自身を含む): 31210374

約数和(自身を除く): 10000641

約数列:

[1, 3, 9, 59, 177, 531, 677, 2031, 3481, 6093, 10443, 31329, 39943, 119829, 359487, 2356637, 7069911, 21209733]

約数ペア:

[(1, 21209733), (3, 7069911), (9, 2356637), (59, 359487), (177, 119829), (531, 39943), (677, 31329), (2031, 10443), (3481, 6093)]