18714969

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2539}}^1$

素因数の和:2571

約数の個数: 40

約数和(自身を含む): 34422080

約数和(自身を除く): 15707111

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 2539, 7371, 7617, 17773, 22851, 33007, 53319, 68553, 99021, 159957, 205659, 231049, 297063, 479871, 693147, 891189, 1439613, 2079441, 2673567, 6238323, 18714969]

約数ペア:

[(1, 18714969), (3, 6238323), (7, 2673567), (9, 2079441), (13, 1439613), (21, 891189), (27, 693147), (39, 479871), (63, 297063), (81, 231049), (91, 205659), (117, 159957), (189, 99021), (273, 68553), (351, 53319), (567, 33007), (819, 22851), (1053, 17773), (2457, 7617), (2539, 7371)]