209220385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{102811}}^1$

素因数の和:102864

約数の個数: 16

約数和(自身を含む): 281293632

約数和(自身を除く): 72073247

約数列:

[1, 5, 11, 37, 55, 185, 407, 2035, 102811, 514055, 1130921, 3804007, 5654605, 19020035, 41844077, 209220385]

約数ペア:

[(1, 209220385), (5, 41844077), (11, 19020035), (37, 5654605), (55, 3804007), (185, 1130921), (407, 514055), (2035, 102811)]