21719038

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{42923}}^1$

素因数の和:42959

約数の個数: 16

約数和(自身を含む): 37086336

約数和(自身を除く): 15367298

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 42923, 85846, 472153, 944306, 987229, 1974458, 10859519, 21719038]

約数ペア:

[(1, 21719038), (2, 10859519), (11, 1974458), (22, 987229), (23, 944306), (46, 472153), (253, 85846), (506, 42923)]