21090426

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{2549}}^1$

素因数の和:2758

約数の個数: 32

約数和(自身を含む): 48470400

約数和(自身を除く): 27379974

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 197, 394, 591, 1182, 1379, 2549, 2758, 4137, 5098, 7647, 8274, 15294, 17843, 35686, 53529, 107058, 502153, 1004306, 1506459, 3012918, 3515071, 7030142, 10545213, 21090426]

約数ペア:

[(1, 21090426), (2, 10545213), (3, 7030142), (6, 3515071), (7, 3012918), (14, 1506459), (21, 1004306), (42, 502153), (197, 107058), (394, 53529), (591, 35686), (1182, 17843), (1379, 15294), (2549, 8274), (2758, 7647), (4137, 5098)]