21221763

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{433}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 31029264

約数和(自身を除く): 9807501

約数列:

[1, 3, 17, 31, 51, 93, 433, 527, 961, 1299, 1581, 2883, 7361, 13423, 16337, 22083, 40269, 49011, 228191, 416113, 684573, 1248339, 7073921, 21221763]

約数ペア:

[(1, 21221763), (3, 7073921), (17, 1248339), (31, 684573), (51, 416113), (93, 228191), (433, 49011), (527, 40269), (961, 22083), (1299, 16337), (1581, 13423), (2883, 7361)]