21777987

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4099}}^1$

素因数の和:4143

約数の個数: 32

約数和(自身を含む): 37785600

約数和(自身を除く): 16007613

約数列:

[1, 3, 7, 11, 21, 23, 33, 69, 77, 161, 231, 253, 483, 759, 1771, 4099, 5313, 12297, 28693, 45089, 86079, 94277, 135267, 282831, 315623, 659939, 946869, 1037047, 1979817, 3111141, 7259329, 21777987]

約数ペア:

[(1, 21777987), (3, 7259329), (7, 3111141), (11, 1979817), (21, 1037047), (23, 946869), (33, 659939), (69, 315623), (77, 282831), (161, 135267), (231, 94277), (253, 86079), (483, 45089), (759, 28693), (1771, 12297), (4099, 5313)]