261738009

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{42209}}^1$

素因数の和:42281

約数の個数: 24

約数和(自身を含む): 414839880

約数和(自身を除く): 153101871

約数列:

[1, 3, 9, 13, 39, 53, 117, 159, 477, 689, 2067, 6201, 42209, 126627, 379881, 548717, 1646151, 2237077, 4938453, 6711231, 20133693, 29082001, 87246003, 261738009]

約数ペア:

[(1, 261738009), (3, 87246003), (9, 29082001), (13, 20133693), (39, 6711231), (53, 4938453), (117, 2237077), (159, 1646151), (477, 548717), (689, 379881), (2067, 126627), (6201, 42209)]