19211890

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{27059}}^1$

素因数の和:27137

約数の個数: 16

約数和(自身を含む): 35069760

約数和(自身を除く): 15857870

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 27059, 54118, 135295, 270590, 1921189, 3842378, 9605945, 19211890]

約数ペア:

[(1, 19211890), (2, 9605945), (5, 3842378), (10, 1921189), (71, 270590), (142, 135295), (355, 54118), (710, 27059)]