28440243

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5653}}^1$

素因数の和:5715

約数の個数: 24

約数和(自身を含む): 45277232

約数和(自身を除く): 16836989

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 5031, 5653, 16959, 50877, 73489, 220467, 243079, 661401, 729237, 2187711, 3160027, 9480081, 28440243]

約数ペア:

[(1, 28440243), (3, 9480081), (9, 3160027), (13, 2187711), (39, 729237), (43, 661401), (117, 243079), (129, 220467), (387, 73489), (559, 50877), (1677, 16959), (5031, 5653)]