18201513

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 27574272

約数和(自身を除く): 9372759

約数列:

[1, 3, 11, 33, 43, 101, 127, 129, 303, 381, 473, 1111, 1397, 1419, 3333, 4191, 4343, 5461, 12827, 13029, 16383, 38481, 47773, 60071, 141097, 143319, 180213, 423291, 551561, 1654683, 6067171, 18201513]

約数ペア:

[(1, 18201513), (3, 6067171), (11, 1654683), (33, 551561), (43, 423291), (101, 180213), (127, 143319), (129, 141097), (303, 60071), (381, 47773), (473, 38481), (1111, 16383), (1397, 13029), (1419, 12827), (3333, 5461), (4191, 4343)]