21405962

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{9901}}^1$

素因数の和:9973

約数の個数: 16

約数和(自身を含む): 34221312

約数和(自身を除く): 12815350

約数列:

[1, 2, 23, 46, 47, 94, 1081, 2162, 9901, 19802, 227723, 455446, 465347, 930694, 10702981, 21405962]

約数ペア:

[(1, 21405962), (2, 10702981), (23, 930694), (46, 465347), (47, 455446), (94, 227723), (1081, 19802), (2162, 9901)]