31721963

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2621}}^1$

素因数の和:2667

約数の個数: 24

約数和(自身を含む): 41847120

約数和(自身を除く): 10125157

約数列:

[1, 7, 13, 19, 49, 91, 133, 247, 637, 931, 1729, 2621, 12103, 18347, 34073, 49799, 128429, 238511, 348593, 647387, 1669577, 2440151, 4531709, 31721963]

約数ペア:

[(1, 31721963), (7, 4531709), (13, 2440151), (19, 1669577), (49, 647387), (91, 348593), (133, 238511), (247, 128429), (637, 49799), (931, 34073), (1729, 18347), (2621, 12103)]