20181095

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 27841536

約数和(自身を除く): 7660441

約数列:

[1, 5, 11, 37, 47, 55, 185, 211, 235, 407, 517, 1055, 1739, 2035, 2321, 2585, 7807, 8695, 9917, 11605, 19129, 39035, 49585, 85877, 95645, 109087, 366929, 429385, 545435, 1834645, 4036219, 20181095]

約数ペア:

[(1, 20181095), (5, 4036219), (11, 1834645), (37, 545435), (47, 429385), (55, 366929), (185, 109087), (211, 95645), (235, 85877), (407, 49585), (517, 39035), (1055, 19129), (1739, 11605), (2035, 9917), (2321, 8695), (2585, 7807)]