21537131

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{12161}}^1$

素因数の和:12202

約数の個数: 16

約数和(自身を含む): 28021248

約数和(自身を除く): 6484117

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 12161, 85127, 133771, 279703, 936397, 1957921, 3076733, 21537131]

約数ペア:

[(1, 21537131), (7, 3076733), (11, 1957921), (23, 936397), (77, 279703), (161, 133771), (253, 85127), (1771, 12161)]