19966737

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{617}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 32274432

約数和(自身を除く): 12307695

約数列:

[1, 3, 7, 21, 23, 67, 69, 161, 201, 469, 483, 617, 1407, 1541, 1851, 4319, 4623, 10787, 12957, 14191, 32361, 41339, 42573, 99337, 124017, 289373, 298011, 868119, 950797, 2852391, 6655579, 19966737]

約数ペア:

[(1, 19966737), (3, 6655579), (7, 2852391), (21, 950797), (23, 868119), (67, 298011), (69, 289373), (161, 124017), (201, 99337), (469, 42573), (483, 41339), (617, 32361), (1407, 14191), (1541, 12957), (1851, 10787), (4319, 4623)]