21640786

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{4723}}^1$

素因数の和:4833

約数の個数: 16

約数和(自身を含む): 34012800

約数和(自身を除く): 12372014

約数列:

[1, 2, 29, 58, 79, 158, 2291, 4582, 4723, 9446, 136967, 273934, 373117, 746234, 10820393, 21640786]

約数ペア:

[(1, 21640786), (2, 10820393), (29, 746234), (58, 373117), (79, 273934), (158, 136967), (2291, 9446), (4582, 4723)]