16618217

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 22471680

約数和(自身を除く): 5853463

約数列:

[1, 7, 11, 19, 37, 77, 133, 209, 259, 307, 407, 703, 1463, 2149, 2849, 3377, 4921, 5833, 7733, 11359, 23639, 40831, 54131, 64163, 79513, 124949, 215821, 449141, 874643, 1510747, 2374031, 16618217]

約数ペア:

[(1, 16618217), (7, 2374031), (11, 1510747), (19, 874643), (37, 449141), (77, 215821), (133, 124949), (209, 79513), (259, 64163), (307, 54131), (407, 40831), (703, 23639), (1463, 11359), (2149, 7733), (2849, 5833), (3377, 4921)]