1221405

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{761}}^1$

素因数の和:876

約数の個数: 16

約数和(自身を含む): 1975104

約数和(自身を除く): 753699

約数列:

[1, 3, 5, 15, 107, 321, 535, 761, 1605, 2283, 3805, 11415, 81427, 244281, 407135, 1221405]

約数ペア:

[(1, 1221405), (3, 407135), (5, 244281), (15, 81427), (107, 11415), (321, 3805), (535, 2283), (761, 1605)]