201612649539

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{505294861}}^1$

素因数の和:505294890

約数の個数: 16

約数和(自身を含む): 323388711680

約数和(自身を除く): 121776062141

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 505294861, 1515884583, 3537064027, 9600602359, 10611192081, 28801807077, 67204216513, 201612649539]

約数ペア:

[(1, 201612649539), (3, 67204216513), (7, 28801807077), (19, 10611192081), (21, 9600602359), (57, 3537064027), (133, 1515884583), (399, 505294861)]