21672968

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{281}}^1\times {\mathrm{311}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 42232320

約数和(自身を除く): 20559352

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 281, 311, 562, 622, 1124, 1244, 2248, 2488, 8711, 9641, 17422, 19282, 34844, 38564, 69688, 77128, 87391, 174782, 349564, 699128, 2709121, 5418242, 10836484, 21672968]

約数ペア:

[(1, 21672968), (2, 10836484), (4, 5418242), (8, 2709121), (31, 699128), (62, 349564), (124, 174782), (248, 87391), (281, 77128), (311, 69688), (562, 38564), (622, 34844), (1124, 19282), (1244, 17422), (2248, 9641), (2488, 8711)]