21382295

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16903}}^1$

素因数の和:16942

約数の個数: 16

約数和(自身を含む): 29210112

約数和(自身を除く): 7827817

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 16903, 84515, 185933, 388769, 929665, 1943845, 4276459, 21382295]

約数ペア:

[(1, 21382295), (5, 4276459), (11, 1943845), (23, 929665), (55, 388769), (115, 185933), (253, 84515), (1265, 16903)]