20387116

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{971}}^1$

素因数の和:1185

約数の個数: 24

約数和(自身を含む): 37149840

約数和(自身を除く): 16762724

約数列:

[1, 2, 4, 29, 58, 116, 181, 362, 724, 971, 1942, 3884, 5249, 10498, 20996, 28159, 56318, 112636, 175751, 351502, 703004, 5096779, 10193558, 20387116]

約数ペア:

[(1, 20387116), (2, 10193558), (4, 5096779), (29, 703004), (58, 351502), (116, 175751), (181, 112636), (362, 56318), (724, 28159), (971, 20996), (1942, 10498), (3884, 5249)]