21260582

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{311}}^1$

素因数の和:596

約数の個数: 32

約数和(自身を含む): 38638080

約数和(自身を除く): 17377498

約数列:

[1, 2, 7, 14, 19, 38, 133, 257, 266, 311, 514, 622, 1799, 2177, 3598, 4354, 4883, 5909, 9766, 11818, 34181, 41363, 68362, 79927, 82726, 159854, 559489, 1118978, 1518613, 3037226, 10630291, 21260582]

約数ペア:

[(1, 21260582), (2, 10630291), (7, 3037226), (14, 1518613), (19, 1118978), (38, 559489), (133, 159854), (257, 82726), (266, 79927), (311, 68362), (514, 41363), (622, 34181), (1799, 11818), (2177, 9766), (3598, 5909), (4354, 4883)]