641193

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1607}}^1$

素因数の和:1636

約数の個数: 16

約数和(自身を含む): 1029120

約数和(自身を除く): 387927

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 1607, 4821, 11249, 30533, 33747, 91599, 213731, 641193]

約数ペア:

[(1, 641193), (3, 213731), (7, 91599), (19, 33747), (21, 30533), (57, 11249), (133, 4821), (399, 1607)]