18628869

素因数分解:

$3^1\times 7^2\times {\mathrm{353}}^1\times {\mathrm{359}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 29056320

約数和(自身を除く): 10427451

約数列:

[1, 3, 7, 21, 49, 147, 353, 359, 1059, 1077, 2471, 2513, 7413, 7539, 17297, 17591, 51891, 52773, 126727, 380181, 887089, 2661267, 6209623, 18628869]

約数ペア:

[(1, 18628869), (3, 6209623), (7, 2661267), (21, 887089), (49, 380181), (147, 126727), (353, 52773), (359, 51891), (1059, 17591), (1077, 17297), (2471, 7539), (2513, 7413)]