20299961

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:197

約数の個数: 32

約数和(自身を含む): 25159680

約数和(自身を除く): 4859719

約数列:

[1, 11, 19, 23, 41, 103, 209, 253, 437, 451, 779, 943, 1133, 1957, 2369, 4223, 4807, 8569, 10373, 17917, 21527, 26059, 45011, 46453, 80237, 97129, 197087, 495121, 882607, 1068419, 1845451, 20299961]

約数ペア:

[(1, 20299961), (11, 1845451), (19, 1068419), (23, 882607), (41, 495121), (103, 197087), (209, 97129), (253, 80237), (437, 46453), (451, 45011), (779, 26059), (943, 21527), (1133, 17917), (1957, 10373), (2369, 8569), (4223, 4807)]