20289868557

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{919}}^1\times {\mathrm{22369}}^1$

素因数の和:23345

約数の個数: 32

約数和(自身を含む): 31611494400

約数和(自身を除く): 11321625843

約数列:

[1, 3, 7, 21, 47, 141, 329, 919, 987, 2757, 6433, 19299, 22369, 43193, 67107, 129579, 156583, 302351, 469749, 907053, 1051343, 3154029, 7359401, 20557111, 22078203, 61671333, 143899777, 431699331, 966184217, 2898552651, 6763289519, 20289868557]

約数ペア:

[(1, 20289868557), (3, 6763289519), (7, 2898552651), (21, 966184217), (47, 431699331), (141, 143899777), (329, 61671333), (919, 22078203), (987, 20557111), (2757, 7359401), (6433, 3154029), (19299, 1051343), (22369, 907053), (43193, 469749), (67107, 302351), (129579, 156583)]