209722018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{55103}}^1$

素因数の和:55289

約数の個数: 16

約数和(自身を含む): 345171456

約数和(自身を除く): 135449438

約数列:

[1, 2, 11, 22, 173, 346, 1903, 3806, 55103, 110206, 606133, 1212266, 9532819, 19065638, 104861009, 209722018]

約数ペア:

[(1, 209722018), (2, 104861009), (11, 19065638), (22, 9532819), (173, 1212266), (346, 606133), (1903, 110206), (3806, 55103)]