18828999

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6359}}^1$

素因数の和:6419

約数の個数: 24

約数和(自身を含む): 31749120

約数和(自身を除く): 12920121

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 6359, 19077, 44513, 57231, 133539, 298873, 400617, 896619, 2092111, 2689857, 6276333, 18828999]

約数ペア:

[(1, 18828999), (3, 6276333), (7, 2689857), (9, 2092111), (21, 896619), (47, 400617), (63, 298873), (141, 133539), (329, 57231), (423, 44513), (987, 19077), (2961, 6359)]