1291255721

素因数分解:

$7^1\times {\mathrm{277}}^1\times {\mathrm{593}}^1\times {\mathrm{1123}}^1$

素因数の和:2000

約数の個数: 16

約数和(自身を含む): 1484866944

約数和(自身を除く): 193611223

約数列:

[1, 7, 277, 593, 1123, 1939, 4151, 7861, 164261, 311071, 665939, 1149827, 2177497, 4661573, 184465103, 1291255721]

約数ペア:

[(1, 1291255721), (7, 184465103), (277, 4661573), (593, 2177497), (1123, 1149827), (1939, 665939), (4151, 311071), (7861, 164261)]