21731584

素因数分解:

$2^8\times 7^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:271

約数の個数: 72

約数和(自身を含む): 50593088

約数和(自身を除く): 28861504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 67, 112, 128, 134, 181, 224, 256, 268, 362, 448, 469, 536, 724, 896, 938, 1072, 1267, 1448, 1792, 1876, 2144, 2534, 2896, 3752, 4288, 5068, 5792, 7504, 8576, 10136, 11584, 12127, 15008, 17152, 20272, 23168, 24254, 30016, 40544, 46336, 48508, 60032, 81088, 84889, 97016, 120064, 162176, 169778, 194032, 324352, 339556, 388064, 679112, 776128, 1358224, 1552256, 2716448, 3104512, 5432896, 10865792, 21731584]

約数ペア:

[(1, 21731584), (2, 10865792), (4, 5432896), (7, 3104512), (8, 2716448), (14, 1552256), (16, 1358224), (28, 776128), (32, 679112), (56, 388064), (64, 339556), (67, 324352), (112, 194032), (128, 169778), (134, 162176), (181, 120064), (224, 97016), (256, 84889), (268, 81088), (362, 60032), (448, 48508), (469, 46336), (536, 40544), (724, 30016), (896, 24254), (938, 23168), (1072, 20272), (1267, 17152), (1448, 15008), (1792, 12127), (1876, 11584), (2144, 10136), (2534, 8576), (2896, 7504), (3752, 5792), (4288, 5068)]