19278369

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 32959680

約数和(自身を除く): 13681311

約数列:

[1, 3, 9, 11, 19, 33, 37, 57, 99, 111, 171, 209, 277, 333, 407, 627, 703, 831, 1221, 1881, 2109, 2493, 3047, 3663, 5263, 6327, 7733, 9141, 10249, 15789, 23199, 27423, 30747, 47367, 57893, 69597, 92241, 112739, 173679, 194731, 338217, 521037, 584193, 1014651, 1752579, 2142041, 6426123, 19278369]

約数ペア:

[(1, 19278369), (3, 6426123), (9, 2142041), (11, 1752579), (19, 1014651), (33, 584193), (37, 521037), (57, 338217), (99, 194731), (111, 173679), (171, 112739), (209, 92241), (277, 69597), (333, 57893), (407, 47367), (627, 30747), (703, 27423), (831, 23199), (1221, 15789), (1881, 10249), (2109, 9141), (2493, 7733), (3047, 6327), (3663, 5263)]