19698237

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5431}}^1$

素因数の和:5481

約数の個数: 24

約数和(自身を含む): 31635968

約数和(自身を除く): 11937731

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 279, 403, 1209, 3627, 5431, 16293, 48879, 70603, 168361, 211809, 505083, 635427, 1515249, 2188693, 6566079, 19698237]

約数ペア:

[(1, 19698237), (3, 6566079), (9, 2188693), (13, 1515249), (31, 635427), (39, 505083), (93, 211809), (117, 168361), (279, 70603), (403, 48879), (1209, 16293), (3627, 5431)]