25997998

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{449}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 44906400

約数和(自身を除く): 18908402

約数列:

[1, 2, 13, 17, 26, 34, 131, 221, 262, 442, 449, 898, 1703, 2227, 3406, 4454, 5837, 7633, 11674, 15266, 28951, 57902, 58819, 99229, 117638, 198458, 764647, 999923, 1529294, 1999846, 12998999, 25997998]

約数ペア:

[(1, 25997998), (2, 12998999), (13, 1999846), (17, 1529294), (26, 999923), (34, 764647), (131, 198458), (221, 117638), (262, 99229), (442, 58819), (449, 57902), (898, 28951), (1703, 15266), (2227, 11674), (3406, 7633), (4454, 5837)]