19890717

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12301}}^1$

素因数の和:12329

約数の個数: 24

約数和(自身を含む): 33658272

約数和(自身を除く): 13767555

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12301, 36903, 86107, 135311, 258321, 405933, 602749, 947177, 1808247, 2841531, 6630239, 19890717]

約数ペア:

[(1, 19890717), (3, 6630239), (7, 2841531), (11, 1808247), (21, 947177), (33, 602749), (49, 405933), (77, 258321), (147, 135311), (231, 86107), (539, 36903), (1617, 12301)]