19894963

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1423}}^1$

素因数の和:1506

約数の個数: 16

約数和(自身を含む): 22966272

約数和(自身を除く): 3071309

約数列:

[1, 11, 31, 41, 341, 451, 1271, 1423, 13981, 15653, 44113, 58343, 485243, 641773, 1808633, 19894963]

約数ペア:

[(1, 19894963), (11, 1808633), (31, 641773), (41, 485243), (341, 58343), (451, 44113), (1271, 15653), (1423, 13981)]