31681797

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{293}}^1$

素因数の和:593

約数の個数: 32

約数和(自身を含む): 51179520

約数和(自身を除く): 19497723

約数列:

[1, 3, 7, 19, 21, 57, 133, 271, 293, 399, 813, 879, 1897, 2051, 5149, 5567, 5691, 6153, 15447, 16701, 36043, 38969, 79403, 108129, 116907, 238209, 555821, 1508657, 1667463, 4525971, 10560599, 31681797]

約数ペア:

[(1, 31681797), (3, 10560599), (7, 4525971), (19, 1667463), (21, 1508657), (57, 555821), (133, 238209), (271, 116907), (293, 108129), (399, 79403), (813, 38969), (879, 36043), (1897, 16701), (2051, 15447), (5149, 6153), (5567, 5691)]