20549895

素因数分解:

$3^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{3881}}^1$

素因数の和:4242

約数の個数: 16

約数和(自身を含む): 32981472

約数和(自身を除く): 12431577

約数列:

[1, 3, 5, 15, 353, 1059, 1765, 3881, 5295, 11643, 19405, 58215, 1369993, 4109979, 6849965, 20549895]

約数ペア:

[(1, 20549895), (3, 6849965), (5, 4109979), (15, 1369993), (353, 58215), (1059, 19405), (1765, 11643), (3881, 5295)]