12921405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1129}}^1$

素因数の和:1253

約数の個数: 32

約数和(自身を含む): 23865600

約数和(自身を除く): 10944195

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 109, 327, 545, 763, 1129, 1635, 2289, 3387, 3815, 5645, 7903, 11445, 16935, 23709, 39515, 118545, 123061, 369183, 615305, 861427, 1845915, 2584281, 4307135, 12921405]

約数ペア:

[(1, 12921405), (3, 4307135), (5, 2584281), (7, 1845915), (15, 861427), (21, 615305), (35, 369183), (105, 123061), (109, 118545), (327, 39515), (545, 23709), (763, 16935), (1129, 11445), (1635, 7903), (2289, 5645), (3387, 3815)]