21208171023

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{2447}}^1\times {\mathrm{74077}}^1$

素因数の和:76543

約数の個数: 24

約数和(自身を含む): 33004415808

約数和(自身を除く): 11796244785

約数列:

[1, 3, 9, 13, 39, 117, 2447, 7341, 22023, 31811, 74077, 95433, 222231, 286299, 666693, 963001, 2889003, 8667009, 181266419, 543799257, 1631397771, 2356463447, 7069390341, 21208171023]

約数ペア:

[(1, 21208171023), (3, 7069390341), (9, 2356463447), (13, 1631397771), (39, 543799257), (117, 181266419), (2447, 8667009), (7341, 2889003), (22023, 963001), (31811, 666693), (74077, 286299), (95433, 222231)]