281569351

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 351406080

約数和(自身を除く): 69836729

約数列:

[1, 7, 17, 61, 79, 119, 427, 491, 553, 1037, 1343, 3437, 4819, 7259, 8347, 9401, 29951, 33733, 38789, 58429, 81923, 209657, 271523, 509167, 573461, 659413, 2366129, 3564169, 4615891, 16562903, 40224193, 281569351]

約数ペア:

[(1, 281569351), (7, 40224193), (17, 16562903), (61, 4615891), (79, 3564169), (119, 2366129), (427, 659413), (491, 573461), (553, 509167), (1037, 271523), (1343, 209657), (3437, 81923), (4819, 58429), (7259, 38789), (8347, 33733), (9401, 29951)]