20921362

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1861}}^1$

素因数の和:1954

約数の個数: 32

約数和(自身を含む): 39682944

約数和(自身を除く): 18761582

約数列:

[1, 2, 7, 11, 14, 22, 73, 77, 146, 154, 511, 803, 1022, 1606, 1861, 3722, 5621, 11242, 13027, 20471, 26054, 40942, 135853, 143297, 271706, 286594, 950971, 1494383, 1901942, 2988766, 10460681, 20921362]

約数ペア:

[(1, 20921362), (2, 10460681), (7, 2988766), (11, 1901942), (14, 1494383), (22, 950971), (73, 286594), (77, 271706), (146, 143297), (154, 135853), (511, 40942), (803, 26054), (1022, 20471), (1606, 13027), (1861, 11242), (3722, 5621)]