2770257

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:213

約数の個数: 32

約数和(自身を含む): 4561920

約数和(自身を除く): 1791663

約数列:

[1, 3, 7, 19, 21, 53, 57, 131, 133, 159, 371, 393, 399, 917, 1007, 1113, 2489, 2751, 3021, 6943, 7049, 7467, 17423, 20829, 21147, 48601, 52269, 131917, 145803, 395751, 923419, 2770257]

約数ペア:

[(1, 2770257), (3, 923419), (7, 395751), (19, 145803), (21, 131917), (53, 52269), (57, 48601), (131, 21147), (133, 20829), (159, 17423), (371, 7467), (393, 7049), (399, 6943), (917, 3021), (1007, 2751), (1113, 2489)]