21889504

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7517}}^1$

素因数の和:7547

約数の個数: 48

約数和(自身を含む): 53047008

約数和(自身を除く): 31157504

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 7517, 15034, 30068, 52619, 60136, 97721, 105238, 120272, 195442, 210476, 240544, 390884, 420952, 684047, 781768, 841904, 1368094, 1563536, 1683808, 2736188, 3127072, 5472376, 10944752, 21889504]

約数ペア:

[(1, 21889504), (2, 10944752), (4, 5472376), (7, 3127072), (8, 2736188), (13, 1683808), (14, 1563536), (16, 1368094), (26, 841904), (28, 781768), (32, 684047), (52, 420952), (56, 390884), (91, 240544), (104, 210476), (112, 195442), (182, 120272), (208, 105238), (224, 97721), (364, 60136), (416, 52619), (728, 30068), (1456, 15034), (2912, 7517)]