15312121937

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1\times {\mathrm{1511}}^1$

素因数の和:1949

約数の個数: 32

約数和(自身を含む): 18125420544

約数和(自身を除く): 2813298607

約数列:

[1, 7, 43, 131, 257, 301, 917, 1511, 1799, 5633, 10577, 11051, 33667, 39431, 64973, 77357, 197941, 235669, 388327, 454811, 1385587, 1447681, 2718289, 8511463, 10133767, 16698061, 50870837, 59580241, 116886427, 356095859, 2187445991, 15312121937]

約数ペア:

[(1, 15312121937), (7, 2187445991), (43, 356095859), (131, 116886427), (257, 59580241), (301, 50870837), (917, 16698061), (1511, 10133767), (1799, 8511463), (5633, 2718289), (10577, 1447681), (11051, 1385587), (33667, 454811), (39431, 388327), (64973, 235669), (77357, 197941)]