21025936

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{42391}}^1$

素因数の和:42430

約数の個数: 20

約数和(自身を含む): 42052864

約数和(自身を除く): 21026928

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42391, 84782, 169564, 339128, 678256, 1314121, 2628242, 5256484, 10512968, 21025936]

約数ペア:

[(1, 21025936), (2, 10512968), (4, 5256484), (8, 2628242), (16, 1314121), (31, 678256), (62, 339128), (124, 169564), (248, 84782), (496, 42391)]