19816628

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{773}}^1$

素因数の和:836

約数の個数: 48

約数和(自身を含む): 40960080

約数和(自身を除く): 21143452

約数列:

[1, 2, 4, 13, 17, 26, 29, 34, 52, 58, 68, 116, 221, 377, 442, 493, 754, 773, 884, 986, 1508, 1546, 1972, 3092, 6409, 10049, 12818, 13141, 20098, 22417, 25636, 26282, 40196, 44834, 52564, 89668, 170833, 291421, 341666, 381089, 582842, 683332, 762178, 1165684, 1524356, 4954157, 9908314, 19816628]

約数ペア:

[(1, 19816628), (2, 9908314), (4, 4954157), (13, 1524356), (17, 1165684), (26, 762178), (29, 683332), (34, 582842), (52, 381089), (58, 341666), (68, 291421), (116, 170833), (221, 89668), (377, 52564), (442, 44834), (493, 40196), (754, 26282), (773, 25636), (884, 22417), (986, 20098), (1508, 13141), (1546, 12818), (1972, 10049), (3092, 6409)]