20958045

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{487}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 35604480

約数和(自身を除く): 14646435

約数列:

[1, 3, 5, 15, 19, 57, 95, 151, 285, 453, 487, 755, 1461, 2265, 2435, 2869, 7305, 8607, 9253, 14345, 27759, 43035, 46265, 73537, 138795, 220611, 367685, 1103055, 1397203, 4191609, 6986015, 20958045]

約数ペア:

[(1, 20958045), (3, 6986015), (5, 4191609), (15, 1397203), (19, 1103055), (57, 367685), (95, 220611), (151, 138795), (285, 73537), (453, 46265), (487, 43035), (755, 27759), (1461, 14345), (2265, 9253), (2435, 8607), (2869, 7305)]