18996977404

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{509}}^1\times {\mathrm{491081}}^1$

素因数の和:491613

約数の個数: 24

約数和(自身を含む): 35063254800

約数和(自身を除く): 16066277396

約数列:

[1, 2, 4, 19, 38, 76, 509, 1018, 2036, 9671, 19342, 38684, 491081, 982162, 1964324, 9330539, 18661078, 37322156, 249960229, 499920458, 999840916, 4749244351, 9498488702, 18996977404]

約数ペア:

[(1, 18996977404), (2, 9498488702), (4, 4749244351), (19, 999840916), (38, 499920458), (76, 249960229), (509, 37322156), (1018, 18661078), (2036, 9330539), (9671, 1964324), (19342, 982162), (38684, 491081)]