18190395

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 33359040

約数和(自身を除く): 15168645

約数列:

[1, 3, 5, 9, 15, 29, 45, 53, 87, 145, 159, 261, 263, 265, 435, 477, 789, 795, 1305, 1315, 1537, 2367, 2385, 3945, 4611, 7627, 7685, 11835, 13833, 13939, 22881, 23055, 38135, 41817, 68643, 69165, 69695, 114405, 125451, 209085, 343215, 404231, 627255, 1212693, 2021155, 3638079, 6063465, 18190395]

約数ペア:

[(1, 18190395), (3, 6063465), (5, 3638079), (9, 2021155), (15, 1212693), (29, 627255), (45, 404231), (53, 343215), (87, 209085), (145, 125451), (159, 114405), (261, 69695), (263, 69165), (265, 68643), (435, 41817), (477, 38135), (789, 23055), (795, 22881), (1305, 13939), (1315, 13833), (1537, 11835), (2367, 7685), (2385, 7627), (3945, 4611)]