18747783

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^2$

素因数の和:164

約数の個数: 36

約数和(自身を含む): 29575728

約数和(自身を除く): 10827945

約数列:

[1, 3, 9, 23, 41, 47, 69, 123, 141, 207, 369, 423, 943, 1081, 1927, 2209, 2829, 3243, 5781, 6627, 8487, 9729, 17343, 19881, 44321, 50807, 90569, 132963, 152421, 271707, 398889, 457263, 815121, 2083087, 6249261, 18747783]

約数ペア:

[(1, 18747783), (3, 6249261), (9, 2083087), (23, 815121), (41, 457263), (47, 398889), (69, 271707), (123, 152421), (141, 132963), (207, 90569), (369, 50807), (423, 44321), (943, 19881), (1081, 17343), (1927, 9729), (2209, 8487), (2829, 6627), (3243, 5781)]