21682857

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1753}}^1$

素因数の和:1813

約数の個数: 32

約数和(自身を含む): 35921920

約数和(自身を除く): 14239063

約数列:

[1, 3, 7, 19, 21, 31, 57, 93, 133, 217, 399, 589, 651, 1753, 1767, 4123, 5259, 12271, 12369, 33307, 36813, 54343, 99921, 163029, 233149, 380401, 699447, 1032517, 1141203, 3097551, 7227619, 21682857]

約数ペア:

[(1, 21682857), (3, 7227619), (7, 3097551), (19, 1141203), (21, 1032517), (31, 699447), (57, 380401), (93, 233149), (133, 163029), (217, 99921), (399, 54343), (589, 36813), (651, 33307), (1753, 12369), (1767, 12271), (4123, 5259)]