20660913

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2803}}^1$

素因数の和:2835

約数の個数: 40

約数和(自身を含む): 37999808

約数和(自身を除く): 17338895

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 2803, 7371, 8409, 19621, 25227, 36439, 58863, 75681, 109317, 176589, 227043, 255073, 327951, 529767, 765219, 983853, 1589301, 2295657, 2951559, 6886971, 20660913]

約数ペア:

[(1, 20660913), (3, 6886971), (7, 2951559), (9, 2295657), (13, 1589301), (21, 983853), (27, 765219), (39, 529767), (63, 327951), (81, 255073), (91, 227043), (117, 176589), (189, 109317), (273, 75681), (351, 58863), (567, 36439), (819, 25227), (1053, 19621), (2457, 8409), (2803, 7371)]