19911384

素因数分解:

$2^3\times 3^2\times {\mathrm{97}}^1\times {\mathrm{2851}}^1$

素因数の和:2960

約数の個数: 48

約数和(自身を含む): 54501720

約数和(自身を除く): 34590336

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 97, 194, 291, 388, 582, 776, 873, 1164, 1746, 2328, 2851, 3492, 5702, 6984, 8553, 11404, 17106, 22808, 25659, 34212, 51318, 68424, 102636, 205272, 276547, 553094, 829641, 1106188, 1659282, 2212376, 2488923, 3318564, 4977846, 6637128, 9955692, 19911384]

約数ペア:

[(1, 19911384), (2, 9955692), (3, 6637128), (4, 4977846), (6, 3318564), (8, 2488923), (9, 2212376), (12, 1659282), (18, 1106188), (24, 829641), (36, 553094), (72, 276547), (97, 205272), (194, 102636), (291, 68424), (388, 51318), (582, 34212), (776, 25659), (873, 22808), (1164, 17106), (1746, 11404), (2328, 8553), (2851, 6984), (3492, 5702)]