221287136

素因数分解:

$2^5\times 7^3\times {\mathrm{20161}}^1$

素因数の和:20192

約数の個数: 48

約数和(自身を含む): 508082400

約数和(自身を除く): 286795264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 343, 392, 686, 784, 1372, 1568, 2744, 5488, 10976, 20161, 40322, 80644, 141127, 161288, 282254, 322576, 564508, 645152, 987889, 1129016, 1975778, 2258032, 3951556, 4516064, 6915223, 7903112, 13830446, 15806224, 27660892, 31612448, 55321784, 110643568, 221287136]

約数ペア:

[(1, 221287136), (2, 110643568), (4, 55321784), (7, 31612448), (8, 27660892), (14, 15806224), (16, 13830446), (28, 7903112), (32, 6915223), (49, 4516064), (56, 3951556), (98, 2258032), (112, 1975778), (196, 1129016), (224, 987889), (343, 645152), (392, 564508), (686, 322576), (784, 282254), (1372, 161288), (1568, 141127), (2744, 80644), (5488, 40322), (10976, 20161)]