19649476

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 43287552

約数和(自身を除く): 23638076

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 131, 154, 262, 308, 487, 524, 917, 974, 1441, 1834, 1948, 2882, 3409, 3668, 5357, 5764, 6818, 10087, 10714, 13636, 20174, 21428, 37499, 40348, 63797, 74998, 127594, 149996, 255188, 446579, 701767, 893158, 1403534, 1786316, 2807068, 4912369, 9824738, 19649476]

約数ペア:

[(1, 19649476), (2, 9824738), (4, 4912369), (7, 2807068), (11, 1786316), (14, 1403534), (22, 893158), (28, 701767), (44, 446579), (77, 255188), (131, 149996), (154, 127594), (262, 74998), (308, 63797), (487, 40348), (524, 37499), (917, 21428), (974, 20174), (1441, 13636), (1834, 10714), (1948, 10087), (2882, 6818), (3409, 5764), (3668, 5357)]