20316415

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 29675520

約数和(自身を除く): 9359105

約数列:

[1, 5, 7, 19, 35, 95, 133, 137, 223, 665, 685, 959, 1115, 1561, 2603, 4237, 4795, 7805, 13015, 18221, 21185, 29659, 30551, 91105, 148295, 152755, 213857, 580469, 1069285, 2902345, 4063283, 20316415]

約数ペア:

[(1, 20316415), (5, 4063283), (7, 2902345), (19, 1069285), (35, 580469), (95, 213857), (133, 152755), (137, 148295), (223, 91105), (665, 30551), (685, 29659), (959, 21185), (1115, 18221), (1561, 13015), (2603, 7805), (4237, 4795)]