66989356

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{55639}}^1$

素因数の和:55693

約数の個数: 24

約数和(自身を含む): 137096960

約数和(自身を除く): 70107604

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 55639, 111278, 222556, 389473, 778946, 1557892, 2392477, 4784954, 9569908, 16747339, 33494678, 66989356]

約数ペア:

[(1, 66989356), (2, 33494678), (4, 16747339), (7, 9569908), (14, 4784954), (28, 2392477), (43, 1557892), (86, 778946), (172, 389473), (301, 222556), (602, 111278), (1204, 55639)]