261635559

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{86951}}^1$

素因数の和:87030

約数の個数: 16

約数和(自身を含む): 375632640

約数和(自身を除く): 113997081

約数列:

[1, 3, 17, 51, 59, 177, 1003, 3009, 86951, 260853, 1478167, 4434501, 5130109, 15390327, 87211853, 261635559]

約数ペア:

[(1, 261635559), (3, 87211853), (17, 15390327), (51, 5130109), (59, 4434501), (177, 1478167), (1003, 260853), (3009, 86951)]