20123488107

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{643}}^1\times {\mathrm{6311}}^1$

素因数の和:7008

約数の個数: 48

約数和(自身を含む): 31706438400

約数和(自身を除く): 11582950293

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 643, 1653, 1929, 4959, 5787, 6311, 12217, 18647, 18933, 36651, 55941, 56799, 109953, 119909, 167823, 183019, 354293, 359727, 549057, 1062879, 1079181, 1647171, 3188637, 3477361, 4057973, 10432083, 12173919, 31296249, 36521757, 77101487, 117681217, 231304461, 353043651, 693913383, 1059130953, 2235943123, 6707829369, 20123488107]

約数ペア:

[(1, 20123488107), (3, 6707829369), (9, 2235943123), (19, 1059130953), (29, 693913383), (57, 353043651), (87, 231304461), (171, 117681217), (261, 77101487), (551, 36521757), (643, 31296249), (1653, 12173919), (1929, 10432083), (4959, 4057973), (5787, 3477361), (6311, 3188637), (12217, 1647171), (18647, 1079181), (18933, 1062879), (36651, 549057), (55941, 359727), (56799, 354293), (109953, 183019), (119909, 167823)]