209977405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{103183}}^1$

素因数の和:103236

約数の個数: 16

約数和(自身を含む): 282311424

約数和(自身を除く): 72334019

約数列:

[1, 5, 11, 37, 55, 185, 407, 2035, 103183, 515915, 1135013, 3817771, 5675065, 19088855, 41995481, 209977405]

約数ペア:

[(1, 209977405), (5, 41995481), (11, 19088855), (37, 5675065), (55, 3817771), (185, 1135013), (407, 515915), (2035, 103183)]