21232528

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9547}}^1$

素因数の和:9694

約数の個数: 20

約数和(自身を含む): 41438320

約数和(自身を除く): 20205792

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9547, 19094, 38188, 76376, 152752, 1327033, 2654066, 5308132, 10616264, 21232528]

約数ペア:

[(1, 21232528), (2, 10616264), (4, 5308132), (8, 2654066), (16, 1327033), (139, 152752), (278, 76376), (556, 38188), (1112, 19094), (2224, 9547)]