219981892

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{7937}}^1$

素因数の和:8008

約数の個数: 36

約数和(自身を含む): 427080276

約数和(自身を除く): 207098384

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 169, 338, 533, 676, 1066, 2132, 6929, 7937, 13858, 15874, 27716, 31748, 103181, 206362, 325417, 412724, 650834, 1301668, 1341353, 2682706, 4230421, 5365412, 8460842, 16921684, 54995473, 109990946, 219981892]

約数ペア:

[(1, 219981892), (2, 109990946), (4, 54995473), (13, 16921684), (26, 8460842), (41, 5365412), (52, 4230421), (82, 2682706), (164, 1341353), (169, 1301668), (338, 650834), (533, 412724), (676, 325417), (1066, 206362), (2132, 103181), (6929, 31748), (7937, 27716), (13858, 15874)]