3981887

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:100

約数の個数: 32

約数和(自身を含む): 5376000

約数和(自身を除く): 1394113

約数列:

[1, 7, 13, 19, 47, 49, 91, 133, 247, 329, 343, 611, 637, 893, 931, 1729, 2303, 4277, 4459, 6251, 6517, 11609, 12103, 16121, 29939, 43757, 81263, 84721, 209573, 306299, 568841, 3981887]

約数ペア:

[(1, 3981887), (7, 568841), (13, 306299), (19, 209573), (47, 84721), (49, 81263), (91, 43757), (133, 29939), (247, 16121), (329, 12103), (343, 11609), (611, 6517), (637, 6251), (893, 4459), (931, 4277), (1729, 2303)]