20880958

素因数分解:

$2^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{3001}}^1$

素因数の和:3088

約数の個数: 24

約数和(自身を含む): 36960624

約数和(自身を除く): 16079666

約数列:

[1, 2, 7, 14, 49, 71, 98, 142, 497, 994, 3001, 3479, 6002, 6958, 21007, 42014, 147049, 213071, 294098, 426142, 1491497, 2982994, 10440479, 20880958]

約数ペア:

[(1, 20880958), (2, 10440479), (7, 2982994), (14, 1491497), (49, 426142), (71, 294098), (98, 213071), (142, 147049), (497, 42014), (994, 21007), (3001, 6958), (3479, 6002)]