638049751563

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{646453649}}^1$

素因数の和:646453706

約数の個数: 16

約数和(自身を含む): 992952806400

約数和(自身を除く): 354903054837

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 646453649, 1939360947, 4525175543, 13575526629, 30383321503, 91149964509, 212683250521, 638049751563]

約数ペア:

[(1, 638049751563), (3, 212683250521), (7, 91149964509), (21, 30383321503), (47, 13575526629), (141, 4525175543), (329, 1939360947), (987, 646453649)]