20996170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{433}}^1$

素因数の和:826

約数の個数: 32

約数和(自身を含む): 40903632

約数和(自身を除く): 19907462

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 373, 433, 746, 866, 1865, 2165, 3730, 4330, 4849, 5629, 9698, 11258, 24245, 28145, 48490, 56290, 161509, 323018, 807545, 1615090, 2099617, 4199234, 10498085, 20996170]

約数ペア:

[(1, 20996170), (2, 10498085), (5, 4199234), (10, 2099617), (13, 1615090), (26, 807545), (65, 323018), (130, 161509), (373, 56290), (433, 48490), (746, 28145), (866, 24245), (1865, 11258), (2165, 9698), (3730, 5629), (4330, 4849)]