18991548

素因数分解:

$2^2\times 3^2\times {\mathrm{641}}^1\times {\mathrm{823}}^1$

素因数の和:1474

約数の個数: 36

約数和(自身を含む): 48139728

約数和(自身を除く): 29148180

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 641, 823, 1282, 1646, 1923, 2469, 2564, 3292, 3846, 4938, 5769, 7407, 7692, 9876, 11538, 14814, 23076, 29628, 527543, 1055086, 1582629, 2110172, 3165258, 4747887, 6330516, 9495774, 18991548]

約数ペア:

[(1, 18991548), (2, 9495774), (3, 6330516), (4, 4747887), (6, 3165258), (9, 2110172), (12, 1582629), (18, 1055086), (36, 527543), (641, 29628), (823, 23076), (1282, 14814), (1646, 11538), (1923, 9876), (2469, 7692), (2564, 7407), (3292, 5769), (3846, 4938)]