19215711

素因数分解:

$3^6\times {\mathrm{43}}^1\times {\mathrm{613}}^1$

素因数の和:674

約数の個数: 28

約数和(自身を含む): 29528488

約数和(自身を除く): 10312777

約数列:

[1, 3, 9, 27, 43, 81, 129, 243, 387, 613, 729, 1161, 1839, 3483, 5517, 10449, 16551, 26359, 31347, 49653, 79077, 148959, 237231, 446877, 711693, 2135079, 6405237, 19215711]

約数ペア:

[(1, 19215711), (3, 6405237), (9, 2135079), (27, 711693), (43, 446877), (81, 237231), (129, 148959), (243, 79077), (387, 49653), (613, 31347), (729, 26359), (1161, 16551), (1839, 10449), (3483, 5517)]