261701913

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{4289}}^1$

素因数の和:4389

約数の個数: 24

約数和(自身を含む): 389806560

約数和(自身を除く): 128104647

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 1849, 4289, 5547, 12867, 20339, 47179, 61017, 141537, 184427, 553281, 2028697, 6086091, 7930361, 23791083, 87233971, 261701913]

約数ペア:

[(1, 261701913), (3, 87233971), (11, 23791083), (33, 7930361), (43, 6086091), (129, 2028697), (473, 553281), (1419, 184427), (1849, 141537), (4289, 61017), (5547, 47179), (12867, 20339)]