19661455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 26853120

約数和(自身を除く): 7191665

約数列:

[1, 5, 11, 55, 59, 73, 83, 295, 365, 415, 649, 803, 913, 3245, 4015, 4307, 4565, 4897, 6059, 21535, 24485, 30295, 47377, 53867, 66649, 236885, 269335, 333245, 357481, 1787405, 3932291, 19661455]

約数ペア:

[(1, 19661455), (5, 3932291), (11, 1787405), (55, 357481), (59, 333245), (73, 269335), (83, 236885), (295, 66649), (365, 53867), (415, 47377), (649, 30295), (803, 24485), (913, 21535), (3245, 6059), (4015, 4897), (4307, 4565)]