18338515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 25804800

約数和(自身を除く): 7466285

約数列:

[1, 5, 13, 19, 31, 65, 95, 155, 247, 403, 479, 589, 1235, 2015, 2395, 2945, 6227, 7657, 9101, 14849, 31135, 38285, 45505, 74245, 118313, 193037, 282131, 591565, 965185, 1410655, 3667703, 18338515]

約数ペア:

[(1, 18338515), (5, 3667703), (13, 1410655), (19, 965185), (31, 591565), (65, 282131), (95, 193037), (155, 118313), (247, 74245), (403, 45505), (479, 38285), (589, 31135), (1235, 14849), (2015, 9101), (2395, 7657), (2945, 6227)]