21130180557

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1\times {\mathrm{463}}^1\times {\mathrm{1297}}^1$

素因数の和:2117

約数の個数: 32

約数和(自身を含む): 29111419392

約数和(自身を除く): 7981238835

約数列:

[1, 3, 37, 111, 317, 463, 951, 1297, 1389, 3891, 11729, 17131, 35187, 47989, 51393, 143967, 146771, 411149, 440313, 600511, 1233447, 1801533, 5430527, 15212513, 16291581, 22218907, 45637539, 66656721, 190361987, 571085961, 7043393519, 21130180557]

約数ペア:

[(1, 21130180557), (3, 7043393519), (37, 571085961), (111, 190361987), (317, 66656721), (463, 45637539), (951, 22218907), (1297, 16291581), (1389, 15212513), (3891, 5430527), (11729, 1801533), (17131, 1233447), (35187, 600511), (47989, 440313), (51393, 411149), (143967, 146771)]