21146489

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{373}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 26860680

約数和(自身を除く): 5714191

約数列:

[1, 7, 13, 49, 89, 91, 373, 623, 637, 1157, 2611, 4361, 4849, 8099, 18277, 33197, 33943, 56693, 232379, 237601, 431561, 1626653, 3020927, 21146489]

約数ペア:

[(1, 21146489), (7, 3020927), (13, 1626653), (49, 431561), (89, 237601), (91, 232379), (373, 56693), (623, 33943), (637, 33197), (1157, 18277), (2611, 8099), (4361, 4849)]