21503229

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 33481728

約数和(自身を除く): 11978499

約数列:

[1, 3, 11, 23, 33, 41, 69, 123, 253, 451, 691, 759, 943, 1353, 2073, 2829, 7601, 10373, 15893, 22803, 28331, 31119, 47679, 84993, 174823, 311641, 524469, 651613, 934923, 1954839, 7167743, 21503229]

約数ペア:

[(1, 21503229), (3, 7167743), (11, 1954839), (23, 934923), (33, 651613), (41, 524469), (69, 311641), (123, 174823), (253, 84993), (451, 47679), (691, 31119), (759, 28331), (943, 22803), (1353, 15893), (2073, 10373), (2829, 7601)]