207864909

素因数分解:

$3^2\times 7^2\times {\mathrm{139}}^1\times {\mathrm{3391}}^1$

素因数の和:3550

約数の個数: 36

約数和(自身を含む): 351886080

約数和(自身を除く): 144021171

約数列:

[1, 3, 7, 9, 21, 49, 63, 139, 147, 417, 441, 973, 1251, 2919, 3391, 6811, 8757, 10173, 20433, 23737, 30519, 61299, 71211, 166159, 213633, 471349, 498477, 1414047, 1495431, 3299443, 4242141, 9898329, 23096101, 29694987, 69288303, 207864909]

約数ペア:

[(1, 207864909), (3, 69288303), (7, 29694987), (9, 23096101), (21, 9898329), (49, 4242141), (63, 3299443), (139, 1495431), (147, 1414047), (417, 498477), (441, 471349), (973, 213633), (1251, 166159), (2919, 71211), (3391, 61299), (6811, 30519), (8757, 23737), (10173, 20433)]