21870693

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1747}}^1$

素因数の和:1873

約数の個数: 24

約数和(自身を含む): 34358688

約数和(自身を除く): 12487995

約数列:

[1, 3, 9, 13, 39, 107, 117, 321, 963, 1391, 1747, 4173, 5241, 12519, 15723, 22711, 68133, 186929, 204399, 560787, 1682361, 2430077, 7290231, 21870693]

約数ペア:

[(1, 21870693), (3, 7290231), (9, 2430077), (13, 1682361), (39, 560787), (107, 204399), (117, 186929), (321, 68133), (963, 22711), (1391, 15723), (1747, 12519), (4173, 5241)]