21508938

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{108631}}^1$

素因数の和:108650

約数の個数: 24

約数和(自身を含む): 50839776

約数和(自身を除く): 29330838

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 108631, 217262, 325893, 651786, 977679, 1194941, 1955358, 2389882, 3584823, 7169646, 10754469, 21508938]

約数ペア:

[(1, 21508938), (2, 10754469), (3, 7169646), (6, 3584823), (9, 2389882), (11, 1955358), (18, 1194941), (22, 977679), (33, 651786), (66, 325893), (99, 217262), (198, 108631)]