20808637493

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{641}}^1\times {\mathrm{3643}}^1$

素因数の和:4377

約数の個数: 32

約数和(自身を含む): 25453194240

約数和(自身を除く): 4644556747

約数列:

[1, 7, 19, 67, 133, 469, 641, 1273, 3643, 4487, 8911, 12179, 25501, 42947, 69217, 85253, 244081, 300629, 484519, 815993, 1708567, 2335163, 4637539, 5711951, 16346141, 32462773, 44368097, 156455921, 310576679, 1095191447, 2972662499, 20808637493]

約数ペア:

[(1, 20808637493), (7, 2972662499), (19, 1095191447), (67, 310576679), (133, 156455921), (469, 44368097), (641, 32462773), (1273, 16346141), (3643, 5711951), (4487, 4637539), (8911, 2335163), (12179, 1708567), (25501, 815993), (42947, 484519), (69217, 300629), (85253, 244081)]