19507491

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:591

約数の個数: 24

約数和(自身を含む): 29113344

約数和(自身を除く): 9605853

約数列:

[1, 3, 9, 47, 107, 141, 321, 423, 431, 963, 1293, 3879, 5029, 15087, 20257, 45261, 46117, 60771, 138351, 182313, 415053, 2167499, 6502497, 19507491]

約数ペア:

[(1, 19507491), (3, 6502497), (9, 2167499), (47, 415053), (107, 182313), (141, 138351), (321, 60771), (423, 46117), (431, 45261), (963, 20257), (1293, 15087), (3879, 5029)]