12781998

素因数分解:

$2^1\times 3^2\times {\mathrm{157}}^1\times {\mathrm{4523}}^1$

素因数の和:4688

約数の個数: 24

約数和(自身を含む): 27876888

約数和(自身を除く): 15094890

約数列:

[1, 2, 3, 6, 9, 18, 157, 314, 471, 942, 1413, 2826, 4523, 9046, 13569, 27138, 40707, 81414, 710111, 1420222, 2130333, 4260666, 6390999, 12781998]

約数ペア:

[(1, 12781998), (2, 6390999), (3, 4260666), (6, 2130333), (9, 1420222), (18, 710111), (157, 81414), (314, 40707), (471, 27138), (942, 13569), (1413, 9046), (2826, 4523)]