12009921

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{51991}}^1$

素因数の和:52012

約数の個数: 16

約数和(自身を含む): 19964928

約数和(自身を除く): 7955007

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 51991, 155973, 363937, 571901, 1091811, 1715703, 4003307, 12009921]

約数ペア:

[(1, 12009921), (3, 4003307), (7, 1715703), (11, 1091811), (21, 571901), (33, 363937), (77, 155973), (231, 51991)]