19121571

素因数分解:

$3^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1181}}^1$

素因数の和:1451

約数の個数: 24

約数和(自身を含む): 31715424

約数和(自身を除く): 12593853

約数列:

[1, 3, 7, 9, 21, 63, 257, 771, 1181, 1799, 2313, 3543, 5397, 8267, 10629, 16191, 24801, 74403, 303517, 910551, 2124619, 2731653, 6373857, 19121571]

約数ペア:

[(1, 19121571), (3, 6373857), (7, 2731653), (9, 2124619), (21, 910551), (63, 303517), (257, 74403), (771, 24801), (1181, 16191), (1799, 10629), (2313, 8267), (3543, 5397)]