65439591

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{409}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 105484800

約数和(自身を除く): 40045209

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 401, 409, 1203, 1227, 2807, 2863, 7619, 7771, 8421, 8589, 22857, 23313, 53333, 54397, 159999, 163191, 164009, 492027, 1148063, 3116171, 3444189, 9348513, 21813197, 65439591]

約数ペア:

[(1, 65439591), (3, 21813197), (7, 9348513), (19, 3444189), (21, 3116171), (57, 1148063), (133, 492027), (399, 164009), (401, 163191), (409, 159999), (1203, 54397), (1227, 53333), (2807, 23313), (2863, 22857), (7619, 8589), (7771, 8421)]