18781432

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{991}}^1$

素因数の和:1123

約数の個数: 32

約数和(自身を含む): 37140480

約数和(自身を除く): 18359048

約数列:

[1, 2, 4, 8, 23, 46, 92, 103, 184, 206, 412, 824, 991, 1982, 2369, 3964, 4738, 7928, 9476, 18952, 22793, 45586, 91172, 102073, 182344, 204146, 408292, 816584, 2347679, 4695358, 9390716, 18781432]

約数ペア:

[(1, 18781432), (2, 9390716), (4, 4695358), (8, 2347679), (23, 816584), (46, 408292), (92, 204146), (103, 182344), (184, 102073), (206, 91172), (412, 45586), (824, 22793), (991, 18952), (1982, 9476), (2369, 7928), (3964, 4738)]