261627519

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 366073344

約数和(自身を除く): 104445825

約数列:

[1, 3, 41, 103, 107, 123, 193, 309, 321, 579, 4223, 4387, 7913, 11021, 12669, 13161, 19879, 20651, 23739, 33063, 59637, 61953, 451861, 815039, 846691, 1355583, 2127053, 2445117, 2540073, 6381159, 87209173, 261627519]

約数ペア:

[(1, 261627519), (3, 87209173), (41, 6381159), (103, 2540073), (107, 2445117), (123, 2127053), (193, 1355583), (309, 846691), (321, 815039), (579, 451861), (4223, 61953), (4387, 59637), (7913, 33063), (11021, 23739), (12669, 20651), (13161, 19879)]