20739966

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{15641}}^1$

素因数の和:15676

約数の個数: 32

約数和(自身を含む): 47301408

約数和(自身を除く): 26561442

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 102, 221, 442, 663, 1326, 15641, 31282, 46923, 93846, 203333, 265897, 406666, 531794, 609999, 797691, 1219998, 1595382, 3456661, 6913322, 10369983, 20739966]

約数ペア:

[(1, 20739966), (2, 10369983), (3, 6913322), (6, 3456661), (13, 1595382), (17, 1219998), (26, 797691), (34, 609999), (39, 531794), (51, 406666), (78, 265897), (102, 203333), (221, 93846), (442, 46923), (663, 31282), (1326, 15641)]