13198521

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1741}}^1$

素因数の和:1789

約数の個数: 24

約数和(自身を含む): 21238464

約数和(自身を除く): 8039943

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 1741, 2527, 5223, 7581, 12187, 33079, 36561, 99237, 231553, 628501, 694659, 1885503, 4399507, 13198521]

約数ペア:

[(1, 13198521), (3, 4399507), (7, 1885503), (19, 694659), (21, 628501), (57, 231553), (133, 99237), (361, 36561), (399, 33079), (1083, 12187), (1741, 7581), (2527, 5223)]