19741645

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1091}}^1$

素因数の和:1161

約数の個数: 32

約数和(自身を含む): 30191616

約数和(自身を除く): 10449971

約数列:

[1, 5, 7, 11, 35, 47, 55, 77, 235, 329, 385, 517, 1091, 1645, 2585, 3619, 5455, 7637, 12001, 18095, 38185, 51277, 60005, 84007, 256385, 358939, 420035, 564047, 1794695, 2820235, 3948329, 19741645]

約数ペア:

[(1, 19741645), (5, 3948329), (7, 2820235), (11, 1794695), (35, 564047), (47, 420035), (55, 358939), (77, 256385), (235, 84007), (329, 60005), (385, 51277), (517, 38185), (1091, 18095), (1645, 12001), (2585, 7637), (3619, 5455)]