21484288

素因数分解:

$2^8\times 7^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:673

約数の個数: 72

約数和(自身を含む): 51672320

約数和(自身を除く): 30188032

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 128, 133, 152, 224, 256, 266, 304, 448, 532, 608, 631, 896, 1064, 1216, 1262, 1792, 2128, 2432, 2524, 4256, 4417, 4864, 5048, 8512, 8834, 10096, 11989, 17024, 17668, 20192, 23978, 34048, 35336, 40384, 47956, 70672, 80768, 83923, 95912, 141344, 161536, 167846, 191824, 282688, 335692, 383648, 565376, 671384, 767296, 1130752, 1342768, 1534592, 2685536, 3069184, 5371072, 10742144, 21484288]

約数ペア:

[(1, 21484288), (2, 10742144), (4, 5371072), (7, 3069184), (8, 2685536), (14, 1534592), (16, 1342768), (19, 1130752), (28, 767296), (32, 671384), (38, 565376), (56, 383648), (64, 335692), (76, 282688), (112, 191824), (128, 167846), (133, 161536), (152, 141344), (224, 95912), (256, 83923), (266, 80768), (304, 70672), (448, 47956), (532, 40384), (608, 35336), (631, 34048), (896, 23978), (1064, 20192), (1216, 17668), (1262, 17024), (1792, 11989), (2128, 10096), (2432, 8834), (2524, 8512), (4256, 5048), (4417, 4864)]