21288134

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 38019072

約数和(自身を除く): 16730938

約数列:

[1, 2, 7, 14, 31, 62, 181, 217, 271, 362, 434, 542, 1267, 1897, 2534, 3794, 5611, 8401, 11222, 16802, 39277, 49051, 58807, 78554, 98102, 117614, 343357, 686714, 1520581, 3041162, 10644067, 21288134]

約数ペア:

[(1, 21288134), (2, 10644067), (7, 3041162), (14, 1520581), (31, 686714), (62, 343357), (181, 117614), (217, 98102), (271, 78554), (362, 58807), (434, 49051), (542, 39277), (1267, 16802), (1897, 11222), (2534, 8401), (3794, 5611)]