21211206

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{207953}}^1$

素因数の和:207975

約数の個数: 16

約数和(自身を含む): 44918064

約数和(自身を除く): 23706858

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 207953, 415906, 623859, 1247718, 3535201, 7070402, 10605603, 21211206]

約数ペア:

[(1, 21211206), (2, 10605603), (3, 7070402), (6, 3535201), (17, 1247718), (34, 623859), (51, 415906), (102, 207953)]