19855136

素因数分解:

$2^5\times 7^1\times {\mathrm{137}}^1\times {\mathrm{647}}^1$

素因数の和:801

約数の個数: 48

約数和(自身を含む): 45069696

約数和(自身を除く): 25214560

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 137, 224, 274, 548, 647, 959, 1096, 1294, 1918, 2192, 2588, 3836, 4384, 4529, 5176, 7672, 9058, 10352, 15344, 18116, 20704, 30688, 36232, 72464, 88639, 144928, 177278, 354556, 620473, 709112, 1240946, 1418224, 2481892, 2836448, 4963784, 9927568, 19855136]

約数ペア:

[(1, 19855136), (2, 9927568), (4, 4963784), (7, 2836448), (8, 2481892), (14, 1418224), (16, 1240946), (28, 709112), (32, 620473), (56, 354556), (112, 177278), (137, 144928), (224, 88639), (274, 72464), (548, 36232), (647, 30688), (959, 20704), (1096, 18116), (1294, 15344), (1918, 10352), (2192, 9058), (2588, 7672), (3836, 5176), (4384, 4529)]