20189345

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{1109}}^1$

素因数の和:1456

約数の個数: 16

約数和(自身を含む): 26533440

約数和(自身を除く): 6344095

約数列:

[1, 5, 11, 55, 331, 1109, 1655, 3641, 5545, 12199, 18205, 60995, 367079, 1835395, 4037869, 20189345]

約数ペア:

[(1, 20189345), (5, 4037869), (11, 1835395), (55, 367079), (331, 60995), (1109, 18205), (1655, 12199), (3641, 5545)]