21013076

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{487}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 44599296

約数和(自身を除く): 23586220

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 67, 92, 134, 161, 268, 322, 469, 487, 644, 938, 974, 1541, 1876, 1948, 3082, 3409, 6164, 6818, 10787, 11201, 13636, 21574, 22402, 32629, 43148, 44804, 65258, 78407, 130516, 156814, 228403, 313628, 456806, 750467, 913612, 1500934, 3001868, 5253269, 10506538, 21013076]

約数ペア:

[(1, 21013076), (2, 10506538), (4, 5253269), (7, 3001868), (14, 1500934), (23, 913612), (28, 750467), (46, 456806), (67, 313628), (92, 228403), (134, 156814), (161, 130516), (268, 78407), (322, 65258), (469, 44804), (487, 43148), (644, 32629), (938, 22402), (974, 21574), (1541, 13636), (1876, 11201), (1948, 10787), (3082, 6818), (3409, 6164)]