20668384

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{827}}^1$

素因数の和:919

約数の個数: 48

約数和(自身を含む): 45069696

約数和(自身を除く): 24401312

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 71, 88, 142, 176, 284, 352, 568, 781, 827, 1136, 1562, 1654, 2272, 3124, 3308, 6248, 6616, 9097, 12496, 13232, 18194, 24992, 26464, 36388, 58717, 72776, 117434, 145552, 234868, 291104, 469736, 645887, 939472, 1291774, 1878944, 2583548, 5167096, 10334192, 20668384]

約数ペア:

[(1, 20668384), (2, 10334192), (4, 5167096), (8, 2583548), (11, 1878944), (16, 1291774), (22, 939472), (32, 645887), (44, 469736), (71, 291104), (88, 234868), (142, 145552), (176, 117434), (284, 72776), (352, 58717), (568, 36388), (781, 26464), (827, 24992), (1136, 18194), (1562, 13232), (1654, 12496), (2272, 9097), (3124, 6616), (3308, 6248)]