201731379

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1\times {\mathrm{293}}^1$

素因数の和:619

約数の個数: 32

約数和(自身を含む): 291271680

約数和(自身を除く): 89540301

約数列:

[1, 3, 19, 47, 57, 141, 257, 293, 771, 879, 893, 2679, 4883, 5567, 12079, 13771, 14649, 16701, 36237, 41313, 75301, 225903, 229501, 261649, 688503, 784947, 1430719, 3539147, 4292157, 10617441, 67243793, 201731379]

約数ペア:

[(1, 201731379), (3, 67243793), (19, 10617441), (47, 4292157), (57, 3539147), (141, 1430719), (257, 784947), (293, 688503), (771, 261649), (879, 229501), (893, 225903), (2679, 75301), (4883, 41313), (5567, 36237), (12079, 16701), (13771, 14649)]