21601952

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 44416512

約数和(自身を除く): 22814560

約数列:

[1, 2, 4, 8, 16, 32, 47, 53, 94, 106, 188, 212, 271, 376, 424, 542, 752, 848, 1084, 1504, 1696, 2168, 2491, 4336, 4982, 8672, 9964, 12737, 14363, 19928, 25474, 28726, 39856, 50948, 57452, 79712, 101896, 114904, 203792, 229808, 407584, 459616, 675061, 1350122, 2700244, 5400488, 10800976, 21601952]

約数ペア:

[(1, 21601952), (2, 10800976), (4, 5400488), (8, 2700244), (16, 1350122), (32, 675061), (47, 459616), (53, 407584), (94, 229808), (106, 203792), (188, 114904), (212, 101896), (271, 79712), (376, 57452), (424, 50948), (542, 39856), (752, 28726), (848, 25474), (1084, 19928), (1504, 14363), (1696, 12737), (2168, 9964), (2491, 8672), (4336, 4982)]