20941569

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{541}}^1$

素因数の和:598

約数の個数: 48

約数和(自身を含む): 36526464

約数和(自身を除く): 15584895

約数列:

[1, 3, 9, 11, 17, 23, 33, 51, 69, 99, 153, 187, 207, 253, 391, 541, 561, 759, 1173, 1623, 1683, 2277, 3519, 4301, 4869, 5951, 9197, 12443, 12903, 17853, 27591, 37329, 38709, 53559, 82773, 101167, 111987, 136873, 211531, 303501, 410619, 634593, 910503, 1231857, 1903779, 2326841, 6980523, 20941569]

約数ペア:

[(1, 20941569), (3, 6980523), (9, 2326841), (11, 1903779), (17, 1231857), (23, 910503), (33, 634593), (51, 410619), (69, 303501), (99, 211531), (153, 136873), (187, 111987), (207, 101167), (253, 82773), (391, 53559), (541, 38709), (561, 37329), (759, 27591), (1173, 17853), (1623, 12903), (1683, 12443), (2277, 9197), (3519, 5951), (4301, 4869)]