12719187

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:329

約数の個数: 40

約数和(自身を含む): 20978496

約数和(自身を除く): 8259309

約数列:

[1, 3, 9, 13, 27, 39, 47, 81, 117, 141, 257, 351, 423, 611, 771, 1053, 1269, 1833, 2313, 3341, 3807, 5499, 6939, 10023, 12079, 16497, 20817, 30069, 36237, 49491, 90207, 108711, 157027, 270621, 326133, 471081, 978399, 1413243, 4239729, 12719187]

約数ペア:

[(1, 12719187), (3, 4239729), (9, 1413243), (13, 978399), (27, 471081), (39, 326133), (47, 270621), (81, 157027), (117, 108711), (141, 90207), (257, 49491), (351, 36237), (423, 30069), (611, 20817), (771, 16497), (1053, 12079), (1269, 10023), (1833, 6939), (2313, 5499), (3341, 3807)]