1277506779

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{907}}^1$

素因数の和:1219

約数の個数: 32

約数和(自身を含む): 1804377600

約数和(自身を除く): 526870821

約数列:

[1, 3, 23, 69, 137, 149, 411, 447, 907, 2721, 3151, 3427, 9453, 10281, 20413, 20861, 61239, 62583, 124259, 135143, 372777, 405429, 469499, 1408497, 2857957, 3108289, 8573871, 9324867, 18514591, 55543773, 425835593, 1277506779]

約数ペア:

[(1, 1277506779), (3, 425835593), (23, 55543773), (69, 18514591), (137, 9324867), (149, 8573871), (411, 3108289), (447, 2857957), (907, 1408497), (2721, 469499), (3151, 405429), (3427, 372777), (9453, 135143), (10281, 124259), (20413, 62583), (20861, 61239)]