19680777788

素因数分解:

$2^2\times 7^1\times {\mathrm{16361}}^1\times {\mathrm{42961}}^1$

素因数の和:59333

約数の個数: 24

約数和(自身を含む): 39364877664

約数和(自身を除く): 19684099876

約数列:

[1, 2, 4, 7, 14, 28, 16361, 32722, 42961, 65444, 85922, 114527, 171844, 229054, 300727, 458108, 601454, 1202908, 702884921, 1405769842, 2811539684, 4920194447, 9840388894, 19680777788]

約数ペア:

[(1, 19680777788), (2, 9840388894), (4, 4920194447), (7, 2811539684), (14, 1405769842), (28, 702884921), (16361, 1202908), (32722, 601454), (42961, 458108), (65444, 300727), (85922, 229054), (114527, 171844)]