201621388

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{139627}}^1$

素因数の和:139669

約数の個数: 18

約数和(自身を含む): 372387876

約数和(自身を除く): 170766488

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 139627, 279254, 558508, 2652913, 5305826, 10611652, 50405347, 100810694, 201621388]

約数ペア:

[(1, 201621388), (2, 100810694), (4, 50405347), (19, 10611652), (38, 5305826), (76, 2652913), (361, 558508), (722, 279254), (1444, 139627)]