20219661

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{179}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 36840960

約数和(自身を除く): 16621299

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 163, 179, 231, 489, 537, 693, 1141, 1253, 1467, 1611, 1793, 1969, 3423, 3759, 5379, 5907, 10269, 11277, 12551, 13783, 16137, 17721, 29177, 37653, 41349, 87531, 112959, 124047, 204239, 262593, 320947, 612717, 962841, 1838151, 2246629, 2888523, 6739887, 20219661]

約数ペア:

[(1, 20219661), (3, 6739887), (7, 2888523), (9, 2246629), (11, 1838151), (21, 962841), (33, 612717), (63, 320947), (77, 262593), (99, 204239), (163, 124047), (179, 112959), (231, 87531), (489, 41349), (537, 37653), (693, 29177), (1141, 17721), (1253, 16137), (1467, 13783), (1611, 12551), (1793, 11277), (1969, 10269), (3423, 5907), (3759, 5379)]